. An organism's first line of defense against attack by an invader such as a virus or bacterium is usually Options: A . &nbspto flee or hide B . &nbspits body wall C . &nbspa specific immune response D . &nbspa nonspecific immune response

. An organism's first line of defense against attack by an invader such as

Question

. An organism's first line of defense against attack by an invader such as a virus or bacterium is usually

Options:

A . to flee or hide

B . its body wall

C . a specific immune response

D . a nonspecific immune response

Answer: Option B

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Question 1. . According to the fluid mosaic model of cell membranes,....

Question 2. . The simplest way to differentiate a prokaryotic cell from a eukaryotic one is to....

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Question 4. . Lysosomes are specialized vesicles in __________ that contain digestive enzymes for the breakdown of food. A r....may act as a storage organelle for nutrients or water.

Question 5. . The highly folded membranes found in such eukaryotic organelles as mitochondria and chloroplasts....

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Question 7. . Which of the following statements about prokaryotes is false?....

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Question 9. . Which of the following macromolecules are found in the plasma membrane?....

Question 10. . Which of the following are responsible causing the diseases?....

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