Answer:
Birds
Peacocks
Parrots
Chicken/roosters
Owl
Dinosaurs
Explanation:
In the existing timeline, there are no animals with feathers other than species of birds, however there are some ancient animals with feathers
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Select all of the following structures that can be identified with the help of a brightfield microscope.-fungi-red blood cells-bacteria-plant cell
Answer:
Explanation:
All of the following structures can be identified with the help of a brightfield microscope:
Fungi
Red blood cells
Bacteria
Plant cell
How many amino acids will 15 codons code for
Answer:
20 amino acid
Explanation:
15+5 =20 so its 20
How do animals get nutrients?
Answer: by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates
Explanation:im a expert in animals
what other hormone can best compensate for human growth hormone epinephrine and cortisol how does that hormone affect the body?
Glucagon, epinephrine (commonly known as adrenaline), cortisol, and growth hormone are the primary counterregulatory hormones.
Why are the hormones growth hormone, cortisol, glucagon, and epinephrine referred to be counter regulatory hormones?The reverse of what insulin does, counterregulatory hormones raise blood glucose levels. They achieve this by causing cells to become insulin-resistant, increasing the release of glucose that has been stored in the liver, decreasing the uptake of glucose by muscle cells, and boosting glucose uptake.The hormone glucagon causes the liver to release its stored glucose, which raises blood glucose levels. The body releases glucagon between meals and during the night to keep blood sugar levels stable and to provide energy for cells.A steroid hormone produced by the adrenal glands is cortisol. It is released in the early morning to aid in body arousal as well as in response to stressors such as some forms of exercise and strong emotions.Epinephrine (also known as adrenaline) is a 'fight-or-flight' hormone that, like cortisol, is released in reaction to stress and extreme emotion or activity. It is released by nerve terminals and the adrenal glands. Epinephrine both tells the liver to make glucose and makes the cells more resistant to insulin, raising blood sugar levels.Growth hormone is secreted from the pituitary gland in the brain and works to maintain body composition, cell repair, and metabolism in adults as well as to encourage growth in children. Sleep, intense stress, and exercise elevate growth hormone levels.Learn more about the counter regulatory hormone with the help of the given link:
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Which of the following changes in the plasma me
The change to the plasma membrane would most likely increase membrane fluidity in humans is the decreased lipid raft content (option B).
What is plasma membrane?Plasma membrane is the semipermeable membrane that surrounds the cytoplasm of a cell. Plasma membrane fluidity is a parameter describing the freedom of movement of protein and lipid constituents within the cell membrane.
The factors that affect the fluidity of the plasma membrane are as follows:
temperaturecholesterolthe kind of fatty acids in the phospholipids that form the cell membrane.An increase in the cholesterol concentration generally decreases membrane fluidity, which is why lipid rafts have a much higher concentration of cholesterol than the surrounding membrane. This means that decreasing cholesterol content would make the membrane more fluid.
The complete question is as follows;
Which of the following changes to the plasma membrane would most likely increase membrane fluidity in humans?
A) Increased saturated fatty acid content
B) Decreased lipid raft content
C) Decreased phosphatidylcholine content
D) Decreased unsaturated fatty acid content
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Which organism is the most closely related to birds?
And why?
Answer:
chick
Explanation:
it has feathers and lays eggs
Question:
During the Calvin cycle of photosynthesis, a plant cell uses carbon dioxide to synthesize large carbohydrates. Which statement about this reaction is true?
Answer: Consumes Energy
The statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.
What is Calvin cycle?Calvin cycle of photosynthesis is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms.
The Calvin cycle also called light independent or dark reaction is the second stage of the photosynthetic process. It is so called because it does not require light to occur.
The Calvin cycle makes use of the products of the light stage (ATP and NADPH) to synthesize carbohydrates.
However, the series of reaction is an energy consuming one, which makes use of ATP to occur.
Therefore, the statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.
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Which are vital signs?
O temperature, respiratory rate, and weight
O muscle mass, height, and weight
Oheart rate, temperature, and height
temperature, respiratory rate, and heart rate
The correct combination of vital signs is temperature, respiratory rate, and heart rate.
Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.
Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.
The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.
Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.
Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.
In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.
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Glucose enters the epithelial cells of the small intestine against its concentration gradient. Select the BEST explanation from the following.
a. Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi.
b. Glucose is co-transported in the Na+/K+ pump.
c. Glucose is co-transported with Na+, which moves down its concentration gradient into the cell.
d. Glucose follows the water that is pumped into the cell.
e. Glucose enters by diffusion.
The best explanation is that; Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi. option A.
What is active transport?We know that the term active transport has to do with a movement that occurs against the concentration gradient. In this case, we are having glucose entering the epithelial cells of the small intestine against its concentration gradient.
As such, we have the to know that there must be energy requirement that would make the process to occur. Without the input of energy it is not possible for active transport to occur.
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are phenols and glycosides induced or pre-existing defenses mechanisms for plants immunity ?
Phenols and glycosides are pre-existing defense mechanisms in plants' immune systems. These compounds are part of the plant's chemical defense arsenal and are present in various tissues even before any attack or infection occurs.
Phenols are secondary metabolites found in plants that have antimicrobial and antioxidant properties. They contribute to the plant's defense against pathogens by inhibiting the growth and development of microorganisms. Phenols also play a role in wound healing and lignification, which strengthen the plant's cell walls.
Glycosides are another class of secondary metabolites found in plants that have diverse functions, including defense against herbivores and pathogens. Some glycosides act as toxic compounds when ingested by herbivores, while others can inhibit the growth of microorganisms or interfere with their feeding behavior.
Both phenols and glycosides are produced by plants as part of their constitutive defenses, meaning they are present at baseline levels even in the absence of stress or attack. However, their production can be further induced or enhanced in response to specific stimuli, such as pathogen invasion or herbivore feeding.
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Taigas, tundras, and tropical rainforests share what common abiotic component A:nutrient-poor soil B: freezing temperatures C:a lot of sunlight D:little precipitation
Taigas, tundras, and tropical rainforests have a lot of sunlight
TundraIt has low temperatures throughout the year. Winter is quite severe and summer is cold.
TaigaAlso called coniferous forest due to the predominance of pine and spruce.
Tropical forestThe vegetation is dense and forms strata, depending on the canopy cover of the trees, which gives rise to different microclimates. The vegetation also has epiphytes, lianas and lichens.
With this information, we can conclude that the tundra, taiga and tropical forest have in common the good disposition of sunlight. Correct answer C:a lot of sunlight.
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Lysosones are organelles that contain enzyrnes. Which of the following is a function of lysosomes?
OA
OO
O©
Lysosomes package lipids, carbohydrates, and proteins.
Lysosornes break down lipids, carbohydrates, and proteins.
Lysosomes store lipids, carbohydrates, and proteins
Back
Please answer quickly
Answer:
B break down lipids, carbohydrates, and proteins.
Explain the limitation binomial nominclature (15 marks)
Answer:
- Binomial nomenclature is a widely accepted naming system, which is used in the naming of living things. Multiple native names make it extraordinarily tough to establish an organism globally and maintain an observation of the variety of species. Thus, it creates quite a lot of confusion. To eliminate this confusion, a normal protocol came up. According to it, every organism would have one scientific title which might be utilized by everybody to establish an organism.
What is binomial nomenclature?
Binomial Nomenclature follows a universally accepted naming system, which is used to provide a scientific name to a known organism.
Binomial Nomenclature also known as the binary nomenclature.
It uses two-terms during the nomenclature of a specie (plants, animals, and living organisms) that is why it called two-term naming system.
The scientific name of an organism or binomial nomenclature consists of two words, such as the generic epithet and describes the genus and the specific epithet and refers to the species of the organism.
Both of this term is written in italic and the genus name is capitalized.
Binomial nomenclature was given by Swedish botanist and physician Carl Linnaeus. He also called the founder of modern taxonomy.
Carl Linnaeus described and classified thousands of species of plants and animals in his book Systema Naturae.In this technique, there are particular guidelines that are followed while naming organisms. This normal algorithm is relevant to plants and animals whereas giving them distinctive names inside a given system.There are two worldwide codes such as the International Code of Botanical Nomenclature (ICBN) deal with the biological nomenclature for plants and the International Code of Zoological Nomenclature (ICZN) deal with the biological nomenclature of animals.
These two codes agreed upon by all of the biologists over the world for the naming protocol. These codes ensure that every organism will get a selected identity and that identity is globally recognized.
Summary of the limitation binomial nominclature:
- Some of the main drawbacks of binomial nomenclature are: If two or more names are actually in use in compliance with the priority rule, the appropriate name will be used first and the other names will end up being synonyms because authenticity is synonymous with the senior.
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How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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which malfunctioning organelle within the cell can cause this condition
Answer:
mitochondria—that power his cells. These abnormal mitochondria cause extreme fatigue and weakness in his legs, trouble breathing and a host of other problems.
Explanation:
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The change to the investigation that would remove the source of the error noticed by the scientist is to test a fourth group, in which the participants do not receive the mineral supplement (option A).
What is a controlled experiment?A controlled experiment is an experiment designed to replicate the main experiment in every way, except in respect of the one variable that is being tested, so as isolate the effect of that variable.
In other words, a control is introduced in the experimentation process. A control is group of test subjects left untreated or unexposed to the independent variable.
According to this question, a company is testing the effect of a mineral supplement on common cold. The experimental procedure is okay except that they didn't include a fourth group, which will serve as the control.
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Identify the stages of the water cycle where water moves downward from the force of gravity.
Answer:
we have six stages of water cycle
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Organelles that contain digestive enzymes and break down old and worn-out cell parts are called lysosomes. So the correct option for 1 is lysosomes. 2- Ribosomes, 3-Chloroplast, 4-Golgi apparatus, 6-Vacuoles, 7- Cytoplasm, 8-cell wall,9- cell membrane, 10- Nucleus,11- Rough endoplasmic reticulum, 12-smooth endoplasmic reticulum, 13- Mitochondria, 14- Chlorophyll.
The lysosomes are the cell organelles that contain a large number of enzymes. These enzymes play an important role in the breakdown of biopolymers in the cell like the carbohydrates, proteins, nucleic acids, lipids, etc.
The main functions of lysosomes involve the degradation of unwanted cell components as well as digestion of some extracellular materials that are taken up by the cell with the help of hydrolytic enzymes.
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Clayton has color-deficient vision. This means that he
Clayton has color-deficient vision, which means that he has difficulty distinguishing between certain colors. Color deficiency, also known as color blindness, is a condition where an individual's ability to perceive colors is impaired.
What is a vision ?Vision refers to the ability of an organism to detect and interpret light to form a visual image of the surrounding environment. In humans and many other animals, vision is mediated by the eyes, which contain specialized cells called photoreceptors that are sensitive to light.
When light enters the eye, it is focused by the cornea and lens onto the retina, which contains photoreceptor cells called rods and cones. Rods are responsible for vision in low light conditions and do not distinguish colors, while cones are responsible for color vision and function best in bright light conditions.
Once light is detected by the photoreceptor cells, it is converted into electrical signals that are transmitted to the brain via the optic nerve. The brain then interprets these signals to form a visual image of the surrounding environment.
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short note sentence describe the terms pure culture and mixed culture
Answer:
A pure culture consists of only one type of microbe while a mixed culture has two or more than two microbes.
Explanation:
A pure culture consists of only one type of microbe.
While a mixed culture consists of more than one type of microbes. such cultures may comprise of different species of bacteria or a group of bacteria, viruses and other pathogens.
In mixed culture the microbe species living together may harm each other existence.
How did the plant cells differ from the bacteria and protistan cells? Size? Color? Shape? Nucleus or other organelles visible?
Plant cells differ from bacteria and protistan cells in several ways, including size, shape, and the presence of certain organelles.
Size: Plant cells are generally larger than bacterial cells and some protistan cells, but can vary widely in size depending on the specific type of plant cell. For example, a typical plant cell may be around 10-100 micrometers in diameter, while bacterial cells are generally smaller, ranging from 0.5-5 micrometers in diameter.
Shape: Plant cells have a fixed shape that is determined by their cell walls, which provide support and protection for the cell. Bacterial cells and some protistan cells do not have cell walls, and their shape can vary widely depending on the type of cell.
Nucleus and organelles: Plant cells, like other eukaryotic cells, have a distinct nucleus and a variety of organelles that perform specific functions within the cell. These organelles include the endoplasmic reticulum, Golgi apparatus, mitochondria, and chloroplasts. Bacteria and many protistan cells, on the other hand, do not have a distinct nucleus or membrane-bound organelles.
Color: Plant cells are typically green due to the presence of chloroplasts, which contain the pigment chlorophyll. Bacteria and protistan cells do not have chloroplasts and are typically colorless, although some may have other pigments that give them a specific color.
In summary, plant cells differ from bacteria and protistan cells in terms of size, shape, the presence of distinct organelles, and color.
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in which biome are minerals in the soil most rapidly depleted
Answer:
Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.
If one abiotic factor changed drastically, what effect would that have on the ecosystem?
if a plant is adapted to low temperatures and the specific are where it lives, has a change in its temperature this plant will die and this area will no longer support life, which is due to the change in abiotic factor
In ___ a bell or tuning fork can be chosen to eliminate unknown contingencies. A. genetic conditioning B. classical conditioning C. progressive conditioning D. operant conditioning
In classical conditioning a bell or tuning fork can be chosen to eliminate unknown contingencies.
Classical conditioning is a form of behavioral learning in which a previously neutral stimulus acquires the power to evoke the same innate reflect produced by another stimulus.
Classical conditioning is a type of learning that happens unconsciously. When you learn through classical conditioning, an automatic response is reflex with a specific stimulus. example include Pavlov's experiment with dogs, he begin with providing the neutral signal as a sound tone and in dogs the naturally occurring reflex was salivation for food.
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the snake does not get as much energy from eating the same amount of food as the grasshopper. The statement that best explains why this is true is
Answer:
Grasshoppers use up much of their energy for life processes.
Explanation:
Answer:
hm i have been wanting the answer to the same question
Explanation:
How would transcription be affected if a gene that needed to be expressed was missing its promotor?
Answer:
it can't be used to make a protein in that cell.
Explanation:
If a gene is not transcribed in a cell, it can't be used to make a protein in that cell. If a gene does get transcribed, it is likely going to be used to make a protein (expressed). In general, the more a gene is transcribed, the more protein that will be made.
The transcription is affected as when the gene has not been transcribed the protein will not make. When a gene is transcribed, protein synthesis can happen.
What is gene transcription?Gene expression begins with transcription. To create an RNA molecule, the DNA sequence of a gene must be copied. RNA polymerases, which join nucleotides to create an RNA strand, carry out transcription (using a DNA strand as a template).
A gene cannot be used to produce a protein in a cell if it is not transcribed there. If a gene gets transcribed, it will probably be used to produce a protein (expressed). In general, more protein will be produced the more a gene is transcribed.
Therefore, the transcription is impacted since the protein cannot be produced if the gene is not transcribed. Protein synthesis can take place when a gene is transcribed.
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features of intensive system in farm management
Answer:
I will anwer the question.
Explanation:
Pasture Intensification. ...
Rotational Grazing. ...
Concentrated Animal Feeding Operations (CAFOs) ...
Crop Irrigation. ...
Genetically Modified Organism (GMO) Seeds. ...
Use of Agrochemicals. ...
Livestock. ...
Aquaculture.
Three specific anatomical structures that make monkeys special or at least different and successful in its natural environment.
Answer:
Monkeys unlike most mammals (besides humans) have imposable thumbs which helps them to climb trees and open nuts and fruits.
Monkeys also have powerful tails which they use to hang on branches and to assist them in balance.
Along with imposable thumbs and strong tails, monkeys have long and flexible legs and arms which makes it easy for them to get around and climb trees.
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Evaluate the relationship between extinction events, and the evolution of life give an example
Since species extinction is directly related to natural selection, a significant role in process of progressive evolution. Extinction, according to Darwin, is an inevitable result of natural selection in some cases.
What is meant by extinction?A species dying out completely on Earth is referred to as extinction. Every year, species die extinct, however historically, with a few notable examples, the average pace of elimination has been quite gradual.
What factors lead to species extinction?Overhunting or overharvesting, the importation of invasive plants, including the transmission of disease, as well as habitat loss or loss are the three main anthropogenic drivers of lifeforms extinction and extinction. All 3 groups likely played a role in both ancient and modern times.
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Why are surface antigens on sperm cells not recognized as “self,” and why do they require a blood-testis barrier to prevent antibody formation?
Answer:
The definition has always been defined throughout the clarification portion below, as per the particular context.
Explanation:
Spermatozoa were also developed all through puberty. At the point of conception, those who aren't here. At either the moment of birth, the immune response develops itself and not itself. That implies because after establishing susceptibility to sperm cells are produced. That is why there is no self-recognition of surface antigens onto spermatozoa. To discourage antibody formation towards antigens onto sperm, the bloodstream testis response is characterized. It would protect sperm cell antigens from getting into contact with an infected person.