Answer:
B. Chemoheterotrophs
Explanation:
Photoheterotrophic organisms obtain energy from light and carbon from organic molecules, while photoautotrophs obtain both carbon and energy from light.
Nitrogen fixers, as they name states, need nitrogen to synthesize other molecules, such as proteins and amino acids.
While chemoheterotrophic organisms are those who cannot obtain their energy and carbon from light, but instead they obtain their organic molecules by feeding on other -either alive or dead- organisms. Therefore, they obtain both energy and carbon atoms from organic molecules.
A. Accomplishing daily tasks. All of the other are negative effects
Another name for helper T cells is CD4+ (now options are correct), it is due to the presence of specific cell surface receptors.
<h3>What are T cells?</h3>
T cells are also called CD4- + positive cells have essential functions in the immune system by triggering adaptive immune responses.
These cells CD4- + positive cells contain specific cell surface receptors that can be identified by biochemical analyses.
In conclusion, another name for helper T cells is CD4+ (now options are correct), it is due to the presence of specific cell surface receptors.
Learn more about T cells or CD4+ cells here:
brainly.com/question/9875046
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Answer:
This is a question for your self
