The domain system is a system that classifies things into three cellar life forms that are: Archean, Bacteria, and Eukaryota. It has changed due to the different types of things being introduced in the enviroment.
Answer: Aves
Birds are warm blooded and have feathers
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Mammalia's are warm blooded but have hair that cover the body
Reptilia's are cold blooded and their bodies are usually covered in scales.
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Answer:
Explanation:
Shortage of nutrients in an ecosstem can harm an organism because when nutrients are scarse or very limited for organism and did not meet up with the organism requirements, there will be reduced metabolism and this can cause malfunction. Shortage of nutrients can lead to decline in growth and can lead to spring up of some diseases in the organism because enough nutrients us not available for good metabolic processes and fight diseases.
For example when an organism is deficient in vitamins and carbohydrates, the organism will not have energy to power metabolic processes and for it's activities and vitamins deficient will make the organism not to have the ability to fight against disease.
Too much of nutrients also affect organisms negatively. When there is much build up of nutrients, it can be harmful to the organisms and restrict metabolic processes.
For example too much of nutriwnts like too much of fat can block blood artieries and veins and thus can lead to inability of blood to flow .
Answer:
Yes they do
Explanation:
Animals and plants make up a ecosystem because the animals feed off the plants and the animals feed off of other animals.
Testosterone helps RNA polymerase transcribe certain genes. It is a steroid hormone.
<h3>Testosterone and gene expression</h3>
Testosterone is a steroid hormone produced in the gonads and secreted by the Leydig cells.
During gene expression, testosterone helps to RNA polymerase, which is a key enzyme that acts during transcription.
During transcription, RNA polymerase sequentially adds nucleotides in order to form a single strand RNA.
Learn more about transcription here:
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