A cell biologist is studying how toxins damage cells and prevent the transfer of signals from

outside to inside the cell. Which cell component is he studying?



a. plasma membrane
b. cytoplasm
c. ribosomes
d. mitochondria


A

Biology & Microbiology

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A.  are pseudocoelomates. B.  exhibit bilateral symmetry. C.  include Cnidaria and Ctenophora. D.  exhibit primitive segmentation. E.  have no true tissues.

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The hydrogen-bond lattice causes water to have an unusually ____ specific heat and an unusually ____

heat of vaporization for its molecular weight.

a. high; high b. low; high c. high; low d. low; low

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_____ is the main technique for the early detection of breast cancer and involves taking an X-ray of the breasts.

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Chronic myelogenous leukemia appears to be associated with a chromosomal rearrangement. Which chromosome(s) is(are) involved, and what is the name of the rearrangement?

What will be an ideal response?

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