What types and numbers of chromosomes are found in humans?
A) two pairs of sex chromosomes and 46 pairs of autosomes
B) two pairs of sex chromosomes and 22 pairs of autosomes
C) one pair of sex chromosomes and 46 pairs of autosomes
D) one pair of sex chromosomes and 22 pairs of autosomes
D
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Knowing the concentration of microorganisms in a sample is often an important consideration for environmental, industrial, and medical microbiologists, yet a microscope is sometimes not used to accomplish this task
Explain five major limitations to using a light microscope to directly count microorganisms. What will be an ideal response?
The loss of an electron by a molecule is called
__________. Fill in the blank(s) with the appropriate word(s).
How is the vacuole involved in the support of the non-woody parts of the plant?
What will be an ideal response?
Factors that contribute to difficulty in eliminating fungal infections via the body's defenses include
A. the capsules of some fungi resist phagocytosis. B. many fungi are resistant to cell mediated immune responses. C. many pathogenic fungi produce leukocidins. D. both resistance to phagocytosis and cell mediated immunity. E. many pathogenic fungi are resistant to the action of complement.