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salantis [7]
3 years ago
6

The model illustrates a process by which a substance is taken up by a cell.

Biology
2 answers:
gregori [183]3 years ago
5 0
A from what I remember but I may be wrong
Sedbober [7]3 years ago
4 0

Answer:

A. The model shows the process of endocytosis.

B. The process shown in the model requires energy from the cell.

Explanation:

The model shows endocytosis process. It is an active process i.e. it requires energy from the cell. In endocytosis particles like whole cells or part of cells are engulfed by another cell. Cell membrane plays an important role in this process. It invaginates to form a pocket around the incoming particle. This pocket is pinched off and the particle is contained in the newly formed vacuole from the cell membrane.

Endocytosis can be of two types, phagocytosis and pinocytosis. In phagocytosis, large particles like cells are taken in by the cell. In pinocytosis, cell takes in small solutes dissolved in extracellular fluid.

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a marine biologist dredges up a small animal from the bottom of the ocean. it is uniformly segmented, with short, stiff appendag
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Given the characteristics mentioned in the question, the animal must be an annelid.

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Annelids, (Phylum name annelida) segmented worms, characterized by having body cavities (or body coelom), mobile bristles (or setae), and bodies segmented by transverse rings. The body cavity is reduced in leeches, and the bristles are devoid of some specialized morphology, including leeches. An important phylum of invertebrates in the animal kingdom, Annelida, consists of more than 9,000 species divided into three classes: Sea worms (polychaetes) are divided into motile and sedentary or tube-dwelling forms. earthworms (Oligochaeta); and leeches (Hildinea). Annelids are coelomic and tridermal.

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