The reported effects of toxins on marine zooplankton include
a. increased sinking rate.
b. faster growth.
c. tumors.
d. altered growth and development.
e. increase in photosynthetic rates.
D
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Which type of epithelial cells will provide the most protection against abrasion, such as your foot
rubbing against the bottom of your shoe? a. simple squamous b. stratified squamous c. simple cuboidal d. pseudostratified columnar e. endothelium
Crossing over takes place during
a. early prophase 1 of meiosis only b. middle prophase 1 of meiosis only c. both prophase 1 and prophase 2 of meiosis d. interphase
Which of the following statements most accurately describes a selectively permeable membrane?
a. Solutes are never able to cross the membrane. b. Large molecules are always excluded from crossing the membrane. c. Substances can only pass through the membrane with the help of either active or passive transport proteins. d. Certain solutes move freely across the membrane by simple diffusion while others must be helped across by active or passive transport proteins; some substances are completely excluded from crossing the membrane.
The fever and chills associated with malaria are due to the release of uninucleate daughter cells of Plasmodium called (gametocytes/schizonts/coencytes)
What will be an ideal response?