The first defense cells that interact with a pathogen in the body are

A) T cells.
B) macrophages.
C) B cells.
D) mast cells.


Answer: B

Biology & Microbiology

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Eukaryotes have the ability to take in nutrients by phagocytosis, whereas prokaryotes do not. Which of the following explains the advantage this brings to eukaryotes?

A. Eukaryotes are able to get bigger because they can now ingest larger materials. B. Phagocytosis provides eukaryotes with a way of obtaining more DNA for their genome, which allows them to become more complex. C. Phagocytosis provides eukaryotes with a way of obtaining more RNA for translation, which allows them to become more complex. D. Eukaryotes are able to exploit other, more complex materials for food that prokaryotes cannot. E. None of the answers options is correct.

Biology & Microbiology

Why is the study of biology central to the understanding and solving of the world's great environmental problems?

What will be an ideal response?

Biology & Microbiology

Developmental problems present at birth are known as ________

A) birth defects B) type 2 diabetes C) gastrulation D) teratogenic

Biology & Microbiology

Dissolving

What will be an ideal response?

Biology & Microbiology