Describe two things that would happen in an ecosystem if there were no unicellular organisms. Explain why something with only one cell can be considered to be an organism.
Answers
Unicellular organisms include bacteria, protists, and yeast. For example, a paramecium is a slipper-shaped, unicellular organism found in pond water. It takes in food from the water and digests it in organelles known as food vacuoles. Nutrients from the food travel through the cytoplasm to the surrounding organelles, helping to keep the cell, and thus the organism, functioning. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells. One can easily observe the differences in these cells under a microscope. Their structure is related to their function, meaning each type of cell takes on a particular form in order to best serve its purpose. Nerve cells have appendages called dendrites and axons that connect with other nerve cells to move muscles, send signals to glands, or register sensory stimuli. Outer skin cells form flattened stacks that protect the body from the environment. Muscle cells are slender fibers that bundle together for muscle contraction. The cells of multicellular organisms may also look different according to the organelles needed inside of the cell. For example, muscle cells have more mitochondria than most other cells so that they can readily produce energy for movement; cells of the pancreas need to produce many proteins and have more ribosomes and rough endoplasmic reticula to meet this demand. Although all cells have organelles in common, the number and types of organelles present reveal how the cell functions.
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If there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
Unicellular organisms are small single celled organisms that can be observed through microscope but not with naked eye. The unicellular organisms are bacteria, fungi, virus, and protists. If no unicellular organisms are present in the ecosystem then there will be no nitrogen fixation by the soil bacteria like Nostoc, Cyanobacteria, and others. Since, plants cannot utilize atmospheric nitrogen directly so these bacteria convert the atmospheric nitrogen into plant usable form that is ammonia. When no soil bacteria present in the soil ecosystem then the plants will not be able to grow as ammonia is a chief ingredient of many biomolecules in plants. If there will be no unicellular organisms then there will not be any decomposition process of the organic matter and the waste of dead animals, plants, and other living beings will not recycle into plant usable form this will limit plant growth and will also affect the natural cleaning mechanism of ecosystem. Only one cell can be considered an organism if it shows characteristics of an organism like food intake, respiration, reproduction, and growth.Hence, if there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.
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Related Questions
Which organisms move from place to place through the interaction of muscles and jointed appendages?
-Protozoans and hydras
-grasshoppers and humans
-earthworms and grasshoppers
-earthworms and protists
Answers
Answer:
2
Explanation:
Do this ill give 100 pts plss and if your not gonna do it dont awnser at all
Actually this time
Answers
The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires.
I try my best
Please help if you can.
Answers
Answer:
23cm and 12inch
Explanation:
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Which shows the pathway of the egg through the reproductive system?
ovary → fallopian tube → vagina → uterus
vagina → uterus → fallopian tube → ovary
fallopian tube → ovary → uterus → vagina
ovary → fallopian tube → uterus → vagina
Answers
ovary → fallopian tube → uterus → vagina
The eggs starts In the Ovary then moves into the fallopian tube then so on and so forth
Highly organized systems like living cells should have _____.
a. High energy
b. High entropy
c. Low entropy
d. Low energy
Answers
Science about fossils
_____was the element that was discovered in large quantities of rock by the Alvarez' in conjunction with the extinction of the dinosaurs.
Answers
Answer:
Sulphur is the answer I think
Need help on assignment! 100 points
Assignment: The World’s Energy Exploration
The amount of energy available in the form of nonrenewable resources is finite. You can personally make a difference in making sure that the world continues to have enough energy to supply electricity to everyone who needs it. Today’s assignment is an opportunity to do research into ways that you can make an impact.
Your research will focus on creating a plan that you want to present to one of the following:
a) your family
b) a club or team that you are a part of
c) a community organization like your church or school
The purpose of your plan is to see the world’s energy last a long time. There are a couple of categories to consider, such as different ways to do the following things:
a) Use renewable resources (example: adding solar panels to a building)
b) Conserve energy (example: reducing the amount of electricity used)
c) Reduce, reuse, and recycle (example: planning a recycling drive)
d) Add “green spaces” (example: growing vegetables in a garden)
You need to find three websites related to your idea. Look for other individuals or groups that have accomplished a similar goal. Once you have found your websites, answer the following questions. Number each question and make sure to write your answers in complete sentences.
1. What project do you want to propose and who do you want to participate?
2. What are the three websites you found that helped you choose a project and/or described other people doing similar projects?
3. After reading their stories and thinking about your own ideas, describe your idea for your project. Think of your answer as your presentation of your idea to your group. Make sure to tell them what you want to accomplish and why it is important.
4. In your research, find a difficulty that others faced that you might need to consider. Explain the issue and how it might impact your plan.
5. Choose one story from your research that you found most inspiring. Share a quotation and explain why this was meaningful.
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45 POINTS FOR A CORRECT ANSWER!!!! No links though, those are super sus and I don't like those. If you do something sus I will report you. :) But please help me! I'm super confused and a thorough explanation would really help! Thanks to anyone who answers in advance!
A specific type of bacteria reproduces through binary fission every two hours. If there are seven bacteria to begin with, how many bacteria will there be after four hours?
Answers
Answer:
28
Explanation:
This is because every 2 hr 4 bacteria "are made" so 7 bacteria 2 hrs later
7x4=28
What part of the body is part of both the skeletal system and the lymphatic system?
Answers
Answer:
The thymus gland is part of both.
Explanation:
You can also search it up
The variable that you measure is the ?
A. Controlled Variable
B. Dependent Variable
C. Hypothesis
D. Independent Variable
Answers
Answer:
It would be dependent variable
TED Talk Notes - How Trees Talk to Each Other
Answers
Answer:
Trees are linked to neighboring trees by an underground network of fungi that resembles the neural networks in the brain
Explanation:
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You find an insect at home and you want to know if the insect goes through complete or incomplete metamorphosis. As you observe the insect develop and grow, you notice that the insect molts its exoskeleton a few times and changes slightly as it grows into a full-grown insect with colorful wings and thin legs. What inference can you make based on these observations?
The insect does not go through metamorphosis at all because it grows into an adult.
The insect goes through incomplete metamorphosis because it does not change drastically as it becomes an adult.
The insect goes through complete metamorphosis because it molts its exoskeleton.
The insect goes through complete metamorphosis because it has colorful wings and thin legs as an adult.
Answers
The inference one can draw based on these observations is that the insect goes through incomplete metamorphosis because it does not change drastically as it becomes an adult, which is the second option. Hence, the second option is correct.
Incomplete metamorphosis involves three life stages: egg, nymph, and adult. Insects that undergo incomplete metamorphosis generally resemble miniature versions of the adults as they grow and molt their exoskeletons several times before reaching their final adult form. The changes observed in the insect, such as molting and slight changes in appearance, are consistent with the characteristics of incomplete metamorphosis. Furthermore, the presence of colorful wings and thin legs in the adult insect indicates that it has reached its final stage of development without undergoing a drastic transformation, which is a key feature of incomplete metamorphosis. Hence, the second option is correct.
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State the functions of the skeletal system, including the number and the major bones in the human skeleton.
Answers
The skeletal system serves several important functions in the human body. These functions include:
1. Support: The skeleton provides the structural framework for the body, giving support and shape to the organism.
2. Protection: The skeletal system protects vital organs such as the brain, spinal cord, heart, and lungs. For example, the skull protects the brain, the ribcage protects the heart and lungs, and the vertebrae protect the spinal cord.
3. Movement: Bones act as levers for muscles, enabling body movement. The skeletal system works in conjunction with the muscular system to facilitate motion.
4. Mineral storage: Bones store essential minerals, such as calcium and phosphorus, which are necessary for various body functions.
5. Blood cell production: Red and white blood cells, as well as platelets, are produced in the bone marrow, which is found in some bones.
6. Energy storage: Yellow bone marrow, found in the medullary cavity of long bones, stores energy in the form of fat.
The human skeleton consists of 206 bones in adults. Some of the major bones include:
1. Skull: Comprised of the cranium and facial bones, it protects the brain and supports the structures of the head.
2. Spine (vertebral column): Consists of 33 vertebrae, which protect the spinal cord and support the upper body.
3. Ribcage: Includes 12 pairs of ribs, the sternum, and the thoracic vertebrae, which protect the heart and lungs.
4. Humerus: The long bone in the upper arm, connecting the shoulder to the elbow.
5. Radius and Ulna: The two bones in the forearm, connecting the elbow to the wrist.
6. Femur: The long bone in the thigh, connecting the hip to the knee, and is the longest bone in the body.
7. Tibia and Fibula: The two bones in the lower leg, connecting the knee to the ankle.
8. Pelvis: A basin-shaped structure that supports the spine and organs of the lower abdomen, and connects the spine to the lower limbs.
These are just a few examples of the major bones in the human skeleton.
Answer:
Explanation:skeletal system functions are diffrent of types . In addition to defining our shape and traits as humans, it:
enables movement: Your skeleton helps you stand and move by supporting your weight. Your bodily components are movable thanks to the cooperation of joints, connective tissue, and muscles.
Bone marrow, which makes blood cells, is found in bones. The bone marrow makes RBC AND WBC
supports and shields organs: Your ribs shield your heart and lungs, your backbone shields your spine, and your skull shields your brain.
Mineral storage: Your bones are where your body stores minerals like calcium and vitamin D.
Write a clear, thoughtful 2 paragraph argument that explains HOW 3 body systems work together to promote life functions.
0
No Effort
10
Student correctly identifies at least 3 body systems from the seven systems taught in class.
Student applies knowledge of each body system giving their function and major organ/s.
Student clearly demonstrates through explanations of how each body system works with each other.
Student uses learned writing strategies and writes in complete sentences
Minimum of 8 complete sentences.
Jaime went to the doctor because several strange things have been happening to him. He first noticed that sometimes when he tries to touch something he is unable to feel it. Then he noticed that when he tried to walk his legs wouldn’t always move the way he wanted them to. Lastly, he has been unable to control when he urinates.
HUMAN BODY SYSTEMS QUICK GUIDE
Circulatory : Transport gasses(oxygen,CO2) and nutrients throughout body;
Digestive: Breakdown of nutrients (food);
Nervous: Process & respond to stimuli;
Respiratory: Gas exchange;
Muscular: Movement;
Excretory: Eliminates waste to maintain homeostasis;
Immune: Defense against disease
Answers
Answer: the human body is made up of multiple interacting systems, within the systems there are 3 that really work together. for starters, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce. The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells. Working along these cells is the digestive system, the human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body which then provides nutrients that give the body energy.
Explanation:
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Lucille is finding it difficult to play soccer after school. Her doctor thinks that her cells might not be getting enough oxygen. When Lucille talked about it with a friend, her friend said there might be a problem with Lucille’s respiratory system or circulatory system.What do Lucille’s cells need in order for her body to function properly? How might a problem with Lucille’s respiratory system or circulatory system make it difficult for Lucille to play soccer?
Answers
Hope this helps:)
what would be cool to you if you could pick a superpower?
Answers
Answer:
if i could pick a superpower it would be cool for creative mode
Explanation:
if i had creative mode i could do what ever i wanted
(pls mark me brainliest thanks :))
i would like to be able to read minds
A student is studying a gray pine (conifer/gymnosperms), an apple tree and an avocado tree. After conducting research about them she discovers some similarities and differences between them. What are some of the differences and similarities she probably discovered? (Hints: think about how they reproduce)
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where did the name '' hamster'' probably come from?
A. The animal was discovered by a person named Hamm.
B. People thought the animals looked like little hams.
C. It comes from a word meaning ''tiny''.
D. It comes from a word meaning ''to hoard''.
Answers
Answer:European Hamster
Smallest breed
Roborovski hamster
Stout-bodied rodents,
with tails shorter than body length, and have small, furry ears, short, stocky legs, and wide feet.
en.wikipedia.org
Popular breed
Golden hamster
They carry food in their spacious cheek pouches to their underground storage chambers. When full, the cheeks can make their heads double, or even triple in size.
en.wikipedia.org
Explanation:
Which animal is most likely to have an open circulatory system?
Responses
beetle
cat
human
elephant
Answers
Answer:
Beetle
Explanation:
open circulatory system found primarily in arthropods and mollusks. Arthropods are a group of animals that includes insects and crustaceans.
Answer:
The answer is beetle
Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human
Answers
hope this helped.
What is plate tectonics ?
PLEASE HELP NOW OR I WILL FAIL
Answers
Write one example of the way carrying capacity affects community.
Answers
Answer:
if climate change and resources that specific animal food requirements decrease for one species, this change in carriage capacity affects other populations within the area.
Explanation:
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In the winter, many northern animals migrate to Florida for better environmental conditions. Which of the following examples provides evidence for this response to the seasonal changes of winter?
1) Physical tags show that northern bears migrate to Florida in response to the seasonal changes of winter to give birth and gain access to food sources.
2) Radio-tracking shows that turkey vultures migrate to Florida in response to the seasonal changes of winter to gather and store food before they hibernate.
3) Through satellite tracking, scientists know that northern birds migrate to Florida in response to the seasonal changes of winter to find warmer temperatures and hibernate.
4)Using satellite tracking, scientists know that whales respond to the seasonal changes of winter by travelling to the warmer waters of Florida to give birth to their calves.
Answers
Answer:
3
Explanation:
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Using satellite tracking, scientists know that whales respond to the seasonal changes of winter by travelling to the warmer waters of Florida to give birth to their calves. Option 4 is correct.
What is satellite tracking?The object in the space which collects information or is a part of communication system. Tracking or watching artificial satellites is called as satellite tracking. People doing this work are called as satellite trackers or satellite watchers, observers or spotters.
Satellites are used for observation of the earth, for communication as radio telecommunication, for navigation purpose. They are also used as telescope and for experimental purpose.
It also plays significant role in tracking of migratory animals such as whales. Tracking devices are attached to the back of whale through the suction cups, which record depth, water, temperature, and underwater sounds.
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If you could repeat the experiment and make it better, what would you do differently and why? There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. 7 Life Science
100 points gave me a good answer.
Answers
1. Increase sample size: By increasing the sample size, the statistical power of the experiment increases, which makes it easier to detect differences between groups or conditions.
2. Use a control group: A control group is essential to reduce the impact of confounding variables and to validate the experimental design. The control group should be identical to the experimental group, except for the manipulated variable.
3. Randomize the assignment of subjects: Randomization helps eliminate bias and ensures that differences between groups are due to the manipulated variable and not due to pre-existing differences between subjects.
4. Blind the experiment: Blinding reduces the impact of bias by preventing experimenters and subjects from knowing which group they are in. This can be achieved through single-blind or double-blind procedures.
5. Replicate the experiment: Replication is crucial to ensure the reliability of the results. Ideally, experiments should be replicated by different researchers in different labs.
6. Use appropriate statistical analysis: Choosing the right statistical analysis is important to ensure the validity of the results. Statistical tests should be chosen based on the type of data collected and the research question.
7. Document all procedures: Documenting all procedures, including the experimental design, data collection methods, and statistical analysis, is essential for transparency and reproducibility.
Hope this applies to your experiment in anyways best of luck
Please help me with this
Answers
Answer:
chlorophyll is pigment Which absorb the sun's energy..
stomata let gases in and out...
green leaf is the factory......
photosynthesis is the process by which green ......
phloem carries glucose to the plant....
radiant energy comes from sun...
chloroplast is the organelle that contains chlorophyll..
xylem distributes water to the plant..
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In 4 or more complete sentences, describe the process of protein synthesis and explain how transcription and translation creates protein
Answers
Protein synthesis occurs in the cell and is divided into 2 stages, namely transcription and translation. The process of transcription occurs in the cell nucleus by copying the genetic code in DNA and forming mRNA strands which are duplicates of DNA.
The RNA strands that are formed will come out of the cell nucleus and then undergo a translation process that occurs in the cytoplasm. With the help of ribosomes, the amino acids will line up according to the sequence of the genetic code in the mRNA to form polypeptide chains that make up the protein structure.
What is protein synthesis?
Protein synthesis is the formation of proteins in the human body and occurs in the smallest units, namely cells. Protein synthesis is divided into 2 stages, in the following order:
1. Transcription
Transcription is the process of copying the genetic code or DNA that occurs in the cell nucleus or nucleus. The process of copying the genetic code is carried out by unbinding the DNA with the help of RNA polymerase, then forming a copy of the genetic code that is complementary to the sequence of hydrogen bases in the DNA. The process of transcription produces a strand of genetic code called mRNA or RNAd.2. Translation
Translation is the process of translating the genetic code contained in the mRNA and occurs in the cytoplasm. With the help of the ribosome, the mRNA will be translated and the amino acids will move towards the ribosome. Amino acids will form a sequence that is complementary to the mRNA so that a polypeptide strand that makes up the protein molecule is formed.Learn more about Protein synthesis at https://brainly.com/question/15404950
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1. Transcription:
Transcription is the first step in protein synthesis and takes place in the nucleus of eukaryotic cells or in the cytoplasm of prokaryotic cells. It involves the conversion of genetic information from DNA into a complementary RNA molecule. Here's how it works:
a. DNA unwinding: An enzyme called RNA polymerase binds to a specific region of the DNA molecule known as the promoter. The DNA molecule unwinds at this site.
b. Complementary RNA synthesis: RNA polymerase reads the DNA template strand and synthesizes a complementary RNA molecule, using adenine (A), cytosine (C), guanine (G), and uracil (U) as the RNA bases, instead of thymine (T). This newly formed RNA molecule is called messenger RNA (mRNA).
2. Translation:
Translation is the second step in protein synthesis and occurs in the cytoplasm, specifically at the ribosomes. It involves the conversion of the mRNA molecule into a functional protein. Here's how it works:
a. Initiation: The ribosome attaches to the mRNA molecule at a specific start codon (usually AUG), signaling the beginning of translation.
b. Elongation: Transfer RNA (tRNA) molecules bring amino acids to the ribosome, guided by the mRNA codons. These tRNA molecules have anticodons that complement the mRNA codons.
c. Peptide bond formation: As the ribosome moves along the mRNA molecule, it catalyzes the formation of peptide bonds between the amino acids carried by tRNA molecules. This forms a growing polypeptide chain.
d. Termination: Translation continues until a stop codon (UAA, UAG, or UGA) is encountered on the mRNA. At this point, a release factor binds to the ribosome, leading to the release of the completed polypeptide chain.
In summary, protein synthesis begins with transcription, where DNA is transcribed into mRNA. Then, during translation, the mRNA is decoded by ribosomes, and amino acids are linked together to form a polypeptide chain, which eventually folds into a functional protein. This intricate process ensures that the genetic information encoded in DNA is faithfully converted into the proteins that carry out essential functions within cells and organisms.
i needddddddddddddddddd help pls !!
Answers
Answer: 1. newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. The acceleration of an object depends on two things, force, and mass.
2.The greater the mass of an object, the less it will accelerate when a given force is applied
3. 40kg cause its more lighter then the 400kg cause the 400kg is heaver then 40kg
Explanation:
i hope this helped you
Answer:
Explanation:
we know by newton's second law of motion that
F=ma
where F is force
m is mass
and a is acceleration
1.) How does air move during sea breeze?
2.) From where does the wind blow during the land breeze?
3.) What time of the day does the sea breeze occur? (night time or day time)
4.) Which heats faster, land or sea?
5.) Compare the direction of air in sea breeze and land breeze.
Answers
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1.) As a result, warm air rises. Therefore, the warmer air over the land surface is rising. As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air.
2.) a cool wind that blows from land to water. On clear, calm evenings, temperature differences between a body of water and neighboring land produce a cool wind that blows offshore. This wind is called a "land breeze".
3.) While sea breezes occur during the day, land breezes occur at night.
4.) Since land absorbs more solar radiation the land surface retains more heat as do the vegetation for energy. Thus, land surfaces warm more quickly than water.
5.) Sea breeze carries increased moisture, which it absorbs while blowing over a water body. A Land breeze is drier since it has no opportunity to absorb water from any source. Lastly, the sea breeze moves from the sea towards a land body. A Land breeze moves from land toward a water body, generally a sea or ocean.
Answer: 1.) During a sea breeze, the air moves from the sea towards the land. During the day, the land heats up faster than the sea. As a result, the air above the land becomes warmer, and it rises. The cooler air from the sea moves towards the land to replace the rising warm air, resulting in a sea breeze.
2.) During the land breeze, the wind blows from the land towards the sea. At night, the land cools faster than the sea. The air above the sea remains warmer and rises, and the cooler air from the land moves towards the sea, resulting in a land breeze.
3.) The sea breeze occurs during the daytime.
4.) Land heats up faster than water. This is because water has a higher specific heat capacity than land. Specific heat capacity refers to the amount of energy required to increase the temperature of a substance. Water requires more energy to heat up compared to land, which is why it heats up slower than land.
5.) During a sea breeze, the direction of air is from the sea towards the land. During a land breeze, the direction of air is from the land towards the sea.
Explanation:
Write a short paragraph to describe viscosity. Include at least two examples of fluids and the words “flow,” “fluid,” “particles,” and “viscosity.”
Answers
Answer:
Viscosity is the resistance of a fluid (liquid or gas) to a change in shape or movement of neighbouring portions relative to one another. Viscosity denotes opposition to flow.
Explanation:
Answer:
Viscosity is the resistance of a fluid to flow (thickness or thinness of a fluid). Fluids with high viscosity do not flow as easy as fluids with a low viscosity. Temperature affects viscosity, the warmer the liquid, the faster the particles flow and the colder it is the slower it flows. For gases when temperature increases, less friction occurs so it the flow rate is higher and when its col the opposite thing happens
Which of the following is the basic unit of life?
A) CELL
B)ELEMENT
C)NUCLEUS
D)SEED
Answers
Answer:
(a) cell
Explanation:
"What do scientist call the basic unit of life?
The basic unit of life is the cell. In 1838, scientists Theodor Schwann and Matthias Schleiden came up with the original version of the cell theory, which concluded that the basic unit of living things is the cell."
Answer:
A cells
Explanation:
Cells are the basic units of life. cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.