Answer -interact with the antigen-class ii mhc complex presented by macrophages.
Answer:
Plant-eating animals are called PRIMARY CONSUMERS.
Explanation:
In an ecosystem, consumers are heterotrophic organisms that can not make their own food. They rather depend on producers or other consumers for food and nutrition. The organisms that derive their nutrition directly from plants are called primary consumers. They are also called herbivores as they feed on plant and plant products. For example, deer graze grasses. This makes deer a primary consumer and a herbivore.
The cell wall is made up of tough stringy cellulose fibers.
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The molecules that contain instructions for building proteins are <em>B.) DNA molecules</em><em />
DNA consists of molecules called nucloetides. Each nucleotide contains a phosphate group, sugar group, and nitrogen base. There are four bases: cytosine (C), thymine (T), adenine (A), and guanine (G). The order of these bases is what determines the genetic code, or DNA instructions.
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Bryophytes also need a moist environment<span> to reproduce. Their flagellated sperm</span>must<span> swim through water to reach the egg. So mosses and liverworts are restricted to </span>moist<span> habitats.</span>
