Organelle,
Cells,
Tissues,
Organs,
Organ System,
Organisms,
Populations,
Communities,
Ecosystems,
And Biosphere
The statement is true that T-cells are a type of immune cell system that recognizes pathogens in the body.
T-cells are the lymphocytes that are involved in providing acquired immunity to the body. They can recognize the pathogens presented by the antigen presenting cells. There are two types of t cells: helper T cells and Cytotoxic T cells.
Immune cells are the cells of the immune system that are involved in protecting the body from infection, allergies and foreign pathogens. There are several immune cells that perform several functions. The example of such cells are: phagocytes, lymphocytes, dendritic cells, etc.
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The words that comes in the blanks are phosphate group, phosphate group, a sugar group and a nitrogen base.
ATP stands for Adenosine triphosphate and DNA stands for Deoxyribonucleic acid.
<span>ATP is a nucleotide that is similar to DNA but it has 2 extra phosphate groups.
</span>DNA is made up of a nucleotide that consist of a phosphate group, a sugar group and a nitrogen base.
Answer:
Photoautotrophs use light energy to convert carbon
dioxide into organic compounds. This process is called
photosynthesis .
Best Answer Ever: <span>The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems. Regulation of </span>body temperature<span>, </span>blood pressure<span>, pH, and </span>glucose concentration<span> are four examples of how the body maintains homeostasis.</span>
