In which structure do pollen grains develop?
A) stamen
B) sepal
C) filament
D) anther
D
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What is the rough ER's function in the cell?
a. It is a site of carbohydrate synthesis. b. It is a site of lipid synthesis. c. It is a site of RNA synthesis. d. It is a site of protein synthesis.
Which of the following is not a C3 grass?
a. wheat. b. oats. c. barley. d. rice e. legumes.
How do premating isolation mechanisms differ from postmating isolation mechanisms?
What will be an ideal response?
All of the following are true statements about the lymphatic system EXCEPT that
A) the lymphatic system transports carbohydrates from the small intestine to the blood. B) the lymphatic system returns fluids to the bloodstream. C) lymphatic vessels resemble veins because they have valves. D) the lymphatic system helps defend the body against disease.