Evolution is a theory because
A. we are not sure if it is true
B.there's not enough evidence yet
C.scientific theories are supported by a large amount of evidence
D.none of these is true
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Related Questions
Highly organized systems like living cells should have _____.
a. High energy
b. High entropy
c. Low entropy
d. Low energy
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Which pair of structures would provide a positive identification of a plant cell under a microscope?
A.plasma membrane, large central vacuole
B.ribosomes, chloroplasts
C.cell wall, mitochondria
D.cell wall, chloroplast
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Answer:
D
Explanation:
If you look under a microscope it would be easy to see the cell wall and the chloroplast. in the picture that I put you can easily see the green which is the chloroplast and the cell wall which is the thin outer layer of the cell.
Which type of reproduction is shown in the diagram?
A) budding
B) binary fission
C) fragmentation
D) sporulation
Answers
Answer:
Binary Fission
Explanation:
Binary Fission is when an one organism splits itself into two basically.
Budding is when another organism sprouts from the 'parent' organism and eventually breaks off.
Fragmentation is when the parent organism loses a limb, and the limb grows into another organism.
I have never heard of Sporulation, but it sounds like something that has to do with spores, which is not what the diagram respesents.
When rain changes to ice pellets what happens to the temperature?
Answers
Explanation:
When rain changes to ice pellets, the temperature at the surface usually drops. This is because the process of rain changing to ice pellets, also known as sleet or graupel, involves the raindrops passing through a layer of freezing air near the surface. As the raindrops fall through this layer of cold air, they freeze into ice pellets.
This process releases latent heat, which is the energy absorbed or released by a substance during a change in state. In this case, as the water droplets freeze into ice pellets, they release latent heat, which slightly warms the surrounding air. However, this warming effect is generally offset by the cooling effect of the freezing air near the surface, resulting in a net drop in temperature.
It's worth noting that the specific temperature change will depend on various factors, such as the temperature and humidity of the air mass, the intensity of the precipitation, and the duration of the sleet or graupel event. In some cases, the temperature drop may be relatively small, while in other cases, it may be more significant.
The temperature suddenly becomes colder.
Please answer I need help
1. A hurricane draws its energy from the cold, dry air near the ocean's surface. true or false
2. when a hurricane passes over land, it loses its energy source
true or false
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2.True
The first one is false since hurricanes actually really on the warm waters and warm air as a fuel source
The second one is true since once the hurricane passes over the land it losses its source for fuel and therefore losses its strength
The first step after birth is ___________
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Answer:
Immediate newborn assessments include weight, length, and medicines, to make sure that the baby is healthy and stable.
Answer:
First you check the weight of the baby to make sure its healthy.
Explanation:
A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in
the laboratory
Which statement best provides evidence that the substance is a mutagen?
O The cells die within hours of being exposed to the chemical
The cells grow more quickly than those that were not exposed to the chemical
O The cells change after being exposed to the chemical and this change is passed to the next generation of cells.
0 The cells continue to divide at the same rate as before they were exposed to the chemical
Answers
Answer:
i will say The cells change after being exposed to the chemical and this change is passed to the next generation of cells. as the answer
Explanation:
The cells change after being exposed to the chemical and this change is passed to the next generation of cells.
Which is considered a chemical mutagen?Most chemical mutagens are alkylating agents and azides. Physical mutagens include electromagnetic radiation, such as gamma rays, X rays, and UV light, particle radiation, such as fast and thermal neutrons, and beta and alpha particles.
What does a mutagen cause?The mutagen produces mutations in the DNA, and deleterious mutation can result in aberrant, impaired, or loss of function for a particular gene, and accumulation of mutations may lead to cancer. Mutagens may therefore be also carcinogens.
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Which tissue of the chicken wing is commonly referred to as the meat?
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Answer:
The muscle tissue on a chicken wing is meat. The same is true for most joints.
Explanation:
Answer:
The muscle surrounding bone is commonly referred to as the meat.
Please answer, I'll give points and brainlest.
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PLEASE HELP THANK YOU ALSO PLEASE ONLY ANSWER IF YOU KNOW THE ANSWER IM TIRED OF PLP JUST TAKING MY POINT AND SAYING 'SoRrY I nEeDeD PoInTs¨ thank you
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Answer:
you will find convergent plate boundaries.
plates colliding.
when plates collide over and over again, and when the plates go on top of each other.
Explanation:
Determine whether each of the following is a characteristic of DNA, RNA, or both.
Contains adenine:
Is double-stranded:
Is made of nucleotides:
Contains deoxyribose sugar
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Answer:
These are characteristics of DNA.
Explanation:
RNA is not double stranded.
Hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.
Reset Next
Answers
Answer:
Option A. Sodium is needed to generate an action potential.
Explanation:
Action potentials are generated by the special types of the voltage-gated channels which are embedded in the plasma membrane of the cell.
These channels are shut when the membrane potential is near zero and the voltage-gated channels open only when the membrane potential is more than the threshold voltage.
When the channels are open then they allow the flow of sodium ions which ultimately changes the electrochemical gradient which rises the membrane potential. This rise in membrane potential generates the action potential.
01.02 MC) Nora walks down a street and sees a girl bouncing a basketball. Nearby, an iron nail is attracted towards a magnet. Which statement is true about the ball and the nail? A. They both experience contact forces. B.The ball experiences a contact force and the nail experiences a non-contact force. C. They both experience non-contact forces. D. The ball experiences a non-contact force and the nail experiences a contact force.
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Answer:
D. The ball experiences a non-contact force and the nail experiences a contact force.
Explanation:
Answer: D is the answer
Explanation:
Although male and female reproductive structures differ from one another in many ways, they carry out some of the same functions. Which of the following is a main function of both male and female reproductive systems?
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Answer:
I think it's D.
Explanation:
1. What is the difference between traits and characteristics?
do not copy, please because its important
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Answer:
Character is a heritable feature.
Trait is a form of that character.
Explanation:
Which of the following is NOT a type of nucleic acid?
a.
DNA
c.
mRNA
b.
RNA
d.
dRNA
Answers
Answer:
DNA
Explanation:
Dna contains genetic information
The following is NOT a type of nucleic acid the dRNA, which is option d, as there are DNA and RNA, and the RNA can be mRNA, tRNA, snRNA, etc., and all these DNA and RNA have many meanings in the cell.
What is the significance of the nucleic acid?This is the macro biomolecule that has many important properties, such as the ability to store, transmit, and express genetic information, and has a critical role in fields such as medicine, genetics, and biotechnology. It helps in the understanding of the genetic basis of disease, the rapid detection of infectious diseases like COVID-19, etc.
Hence, the following is NOT a type of nucleic acid the dRNA, which is option d, as there are DNA and RNA, and the RNA can be mRNA, tRNA, snRNA, etc., and all these DNA and RNA have many meanings in the cell.
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Cell walls can be found in several different types of cells. Which of the following best describes the function of the cell wall?
A. Controls what passes in and out of plant cells.
B. Controls what passes in and out of animal cells.
C. Provides support and helps maintain the shape of plant cells.
D. Provides support and helps maintain the shape of animal cells.
Answers
a i think but plant cells
i thibk it is a but its definitely plant cells
The cell wall helps provide support to the cell. The plasma membrane is what controls the flow of ions and other particles into the cell. Cell walls are also only found in plant cells.
A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement best explains why the daughters’ physical appearance includes both similar and different features?
A: One daughter received fewer genes than the other.
B: Each daughter received a different number of genes from each parent.
C: The daughters received a random set of genes from both of their parents.
D: One daughter received all her genes from her father, and the other daughter received all her genes from her mother
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C: The daughters received a random set of genes from both of their parents.
The physical appearance of an individual is determined by their genes, which are inherited from their parents. Each parent contributes half of their genes to their offspring, and the combination of genes from both parents determines the physical characteristics of the offspring.
When the two daughters inherit genes from both their parents, they receive a random set of genes from each parent, which can result in both similar and different physical features. Therefore, statement C is the best explanation for why the daughters' physical appearance includes both similar and different features.
After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits?
They are more likely to survive environmental changes because of the bottleneck event.
They are as likely to survive environmental changes because they survived the bottleneck event.
They are as likely to survive environmental changes because their population has recovered.
They are less likely to survive environmental changes because of the bottleneck event.
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Answer: They are less likely to survive environmental changes because of the bottleneck event.
Explanation: There is a lack of genetic variation because of the bottleneck effect, making it harder for the species to adapt to an environmental change.
Refer to the graphs below. Determine the type of forest these moths inhabit. Use evidence from the Peppered Moth simulation and the graphs as well as scientific reasoning to support your response.
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Answer:
They live in a forest that has trees with dark colored bark.
Explanation:
Because the dark colored moths can blend in better with dark bark than light colored moths do, they don't stand out as much, so the predators(the birds) will eat the ones that they can find easier, which happens to be the light colored moths.
Many flowering plants must be pollinated by bees to reproduce. Scientists have found that different kinds of bees can see different colors. This affects which flowers they pollinate. For example, bees that can see yellow are more likely to pollinate yellow flowers. Bees that can see red are more likely to pollinate red and orange flowers.
Suppose a large population of bees that see red lives in a meadow. How would the bees most likely affect the meadow's plants?
A.
Most of the flowering plants would have red or orange blossoms.
B.
A few of the meadow's plants would begin growing yellow flowers.
C.
The bees would not affect the meadow's plant populations.
D.
Many of the meadow's plants would stop blooming.
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What type of plate boundary is shown?
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Answer:
Convergent plate boundary
Answer:
It is a convergent boundary.
Explanation:
It is an area on Earth where two or more plates collide
WAT DOES 37YX7437364 (MEMES AT THE END PLEASE THANK YOU)
I NEED 384277= WAT
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Name waterborne and airborne diseases.Distinguish them in 8 to 10 points.What are the precautionary methods to prevent these diseases?
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In baseball, a fly ball happens when a player hits the ball high into the air. The player on the other team must wait for it to come down to catch it. Imagine that there were suddenly no gravity on Earth. How would a fly ball be different?
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Answer:
If there were suddenly no gravity on Earth, a fly ball would never come down.
The ball would continue to travel in a straight line in the direction it was hit, until it hit something.
This is because gravity is the force that pulls objects towards the center of the Earth. Without gravity, there would be no force to pull the ball down.
This would make baseball a very different game!
Explanation:
Which of the following are examples of sexual reproduction?
1. A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
2. A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
3. A yeast offspring grows out of the body of its parent in a process called budding.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.
4. A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.
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Help me on all those including the second one (extra point for hardness)
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Answer:
1. Lithosphere
2. Where things are. Exact points on the surface of the earth. Represent the distance of any location from the center of the Earth
Summery. Longitude and latitude are lines that run across Earth's surface to locate points on the globe
4. B. hydrosphere
1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
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Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
1. Pollution can be of many types such as air pollution, water pollution, noise pollution, and land pollution. In my opinion, air pollution is the worst because it affects people's health and can cause breathing problems, heart diseases, and even cancer. Discussing this issue in a group can help us understand different perspectives and find solutions to reduce pollution.
2. Fossil fuels are non-renewable sources of energy that are formed from the remains of dead plants and animals. Examples of fossil fuels include coal, oil, and natural gas. They are used to generate electricity, fuel vehicles, and heat homes. However, they are a major contributor to air pollution and climate change. Fossil fuels can be replaced by renewable sources of energy such as solar, wind, and hydro power.
3. Factories dumping waste water in rivers and oceans can have a negative impact on aquatic life and the environment. To prevent this, factories can treat their waste water before discharging it into the environment. Governments can also enforce strict regulations and penalties for factories that violate environmental laws.
4. To reduce the amount of garbage, we can follow the three R's - reduce, reuse, and recycle. We can reduce the amount of waste we generate by using reusable bags, bottles, and containers. We can also compost organic waste such as food scraps and yard waste. Recycling can also help reduce the amount of garbage by turning waste into new products.
5. I try to avoid drinking bottled water because it generates a lot of plastic waste that can take hundreds of years to decompose. Plastic waste can also harm wildlife and pollute the oceans. Instead, I use a refillable water bottle and fill it with tap water. Tap water is safe to drink in most developed countries and can be a more sustainable choice.
What is an ecosystem and what are its parts and functions?
What can challenge an ecosystem?
What are the roles of the water and food cycles in an ecosystem?
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An ecosystem is a structural and functional unit of ecology where the living organisms interact with each other and the surrounding environment. In other words, an ecosystem is a chain of interactions between organisms and their environment.
Answer:
An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue.
Parts & Functions Of an Ecosystem
The functions of the ecosystem are as follows: It regulates the essential ecological processes, supports life systems and renders stability. It is also responsible for the cycling of nutrients between biotic and abiotic components. It maintains a balance among the various trophic levels in the ecosystem.
What are the major parts of an ecosystem? An ecosystem includes soil, atmosphere, heat and light from the sun, water and living organisms.
Challenges For An Ecosystem
Some of the primary challenges include, but are not limited to, habitat loss, climate change including sea level rise, and levee stability.
The Role and Function of Water
Water cycle have several impacts on the nature - it takes part in weather, erosion and watering plants.
In short term it is positive, to see green grass and trees, not just bonedry dead nature.
In longer term we can see weather changing, clouds made of tiny drops of water coming and leaving - changing humidity (important for fungi and liches), local temperature changes etc.
Longest takes erosion and it is mostly about changing soils structure and nutritients for plants. Erosion can be also seen on riverbeds - in soft rocks/soils being wider, in harder rocks narrow. Also sedimentation in delta is important for development of border ecosystems.
Water makes organisms live and rocks move, that is the importance of water cycle.
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Which is an example of a trace fossil?
A: animal burrow
B: skin of organism
C: preserved bone
D: petrified wood
Answers
Answer:
A: Animal burrow
Explanation:
Edge 2021
Trace fossils can be defined as the ones that provide geological records of the behavior and activities of past life.
These are also known as Ichnofossils.Trace fossils include borings, track and trails, burrowings, and coprolites and gastrolithes.Among the given examples, the evidence of past life is provided by the burrows of animals.Hence, among the given examples, trace evidence is an animal burrow. Therefore, the correct answer is option a.
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