In marine and freshwater environments, the penetration of sunlight and the mixing of nutrients, oxygen, and waste products are the dominant factors controlling the microbial community.
Answer the following statement true (T) or false (F)
True
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The type of change in chromosomal structure in which a chromosome segment is repeated in the same chromosome is called a(n) _______.
a. inversion b. translocation c. deletion d. duplication
The three stress hormones are _____
a. cortisol, FSH, and LH b. epinephrine, cortisol, and FSH c. norepinephrine, cortisol, and FSH d. epinephrine, norepinephrine, and cortisol e. epinephrine, norepinephrine, and FSH
In a human cell at prophase I, there are ____ tetrads
a. 92 b. 46 c. 23 d. 2 e. 4
Fifth disease
A. in immunodeficient children, destroys red blood cell stem cells. B. involves pathogen capable of crossing the placenta. C. is a childhood febrile disease with a bright red rash on the cheeks. D. is caused by Parvovirus B19. E. All of the choices are correct.