In the abyssal zone, which of the following serve as the base of the food chain?
a. chemosynthetic bacteria
b. photosynthetic organisms
c. phytoplankton
d. zooplankton
a. chemosynthetic bacteria
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Which of the following hormones are most
closely related to the health problems of the poor?
a. aldosterone b. ADH c. cortisol d. glucagon e. thryroxin
What are the functions of the large intestine?
A) produce digestive enzymes B) forms feces C) absorb water D) absorb some vitamins E) produce bile
List three abnormalities involving numbers of X chromosomes
What will be an ideal response?
On a remote island, a new animal is found. It has a four-chambered heart and lungs and is endothermic. It has internal fertilization, lays shelled eggs, and nurses its young after they hatch. This animal is most likely a(n)
A) monotreme. B) reptile. C) amphibian. D) coelacanth. E) marsupial.