An abnormality involcing the plateltes would probably affect the process of
a. breathing
b. locomotion
c. fighting bacterial infections
d. blood clotting
Answer: d. blood clotting
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Despite the invariance of the peptidoglycan backbone's structure, there are more than 100 different types of peptidoglycan
Indicate whether the statement is true or false.
Why do some single-celled eukaryotes occur primarily as haploid cells, whereas others occur primarily as diploid cells?
A. Only the eukaryotes that reproduce sexually will occur as diploid cells. B. Only the eukaryotes that reproduce sexually will occur as haploid cells. C. Only the eukaryotes that reproduce asexually will occur as diploid cells. D. Only the eukaryotes that reproduce asexually will occur as haploid cells. E. None of the answers options is correct.
An individual who avoids the pull of gravity is exhibiting
(a) negative phototaxis. (b) positive geotaxis. (c) negative geotaxis. (d) positive thigmotaxis.
A patient's serum is analyzed and found to have an abnormally low level of CD8 molecules. This
suggests that the patient has insufficient numbers of
a. macrophages. b. B cells. c. cytotoxic T cells. d. helper T cells. e. NK cells.