Which of the following affects the rate of
diffusion through a selectively permeable
membrane?
I. concentration gradient
II. temperature
III. molecular size
a. I only
b. II only
c. I and II
d. II and III
e. I, II, and III
E
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Glomerular capillary walls and podocytes form a __________ that allows fluid and small solutes in
plasma to pass through and become part of the filtrate. a. glomerular filtrate b. tubular transport c. renal threshold d. filtration membrane e. filtration slits
Which of the following is a true statement about plant reproduction?
A) Embryophytes are small plants in an early developmental stage. B) Male and female bryophytes each produce a type of gametangia. C) Eggs and sperm of most land plants swim toward one another. D) Bryophytes are limited to asexual reproduction.
Describe the process of double-fertilization in an angiosperm, and explain the significance of this process in plant evolution.
What will be an ideal response?
Which of the following contribute to the successful application of Koch's postulates?
A) the development of the compound microscope B) the theory of abiogenesis C) the ability to record the appearance of bacteria photographically D) the development of simple bacterial staining techniques E) the development of techniques for sterile transfer of bacteria