Gametes are produced by ________.
A) external genitalia.
B) sex chromosomes.
C) autosomes.
D) internal genitalia.
E) gonads.
E) gonads.
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Which of the following occurs in the stratum granulosum?
A. Keratinocytes are produced through the process of mitosis. B. The cells produce more keratin filaments that cause the cells to flatten. C. The keratinocytes flake off the surface of the skin. D. The keratinocytes undergo apoptosis. E. Melanocytes produce melanin.
In birds, urine and stool are expelled from the __________
Fill in the blank(s) with correct word
Carbonic anhydrase is necessary for carbon dioxide transport
Indicate whether the statement is true or false
The body cannot make an essential fatty acid, but can make an essential amino acid.
Answer the following statement true (T) or false (F)