Homeostasis provides what kind of internal
environment?
a. positive
b. relatively constant
c. limiting
d. changing
e. chemical and physical
B
Biology & Microbiology
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Which of the following protist groups includes human pathogens?
a. parabasalids b. euglenoids c. forams d. red algae e. brown algae
Biology & Microbiology
Which vitamin is especially important in preventing neural tube defects in the embryo?
a. folate b. niacin c. vitamin C d. vitamin D e. vitamin E
Biology & Microbiology
After being produced in the seminiferous tubules, sperm mature in the
a. epididymis. b. vas deferens. c. ejaculatory duct. d. seminal vesicle. e. urethra.
Biology & Microbiology
Which of the following is not present in all eukaryotic cells?
A. endoplasmic reticulum B. ribosome C. Golgi bodies D. cell wall E. plasma membrane
Biology & Microbiology