During endo and exocytosis lipids made in the SER are transported to the plasma membrane by way of the primary lysosome.
a. true
b. false
Answer: a. true
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Which of the following fundamental properties of life do viruses not possess?
A) metabolism B) irritability C) ability to reproduce D) both choices A and B E) both choices B and C
Lake Ontario is home to a species of catfish with green and brown phenotypes, of which the green variant is more abundant, and the brown variant is more susceptible to predation. An angler accidentally releases brown catfish into a nearby pond where only green catfish had previously existed, and the brown catfish quickly supplant the native green catfish population there. The exact reason for the brown catfish’s newfound success is unknown, but it is possible that they are better able to hide from predators in the brown silt and thicker foliage that exists in the pond. What principle would this demonstrate?
a. directional selection b. absolute fitness c. relative fitness d. diversifying selection
Prokaryotes
a. have nucleoid regions. b. are unicellular. c. may have cell walls. d. are either bacteria or archaeans. e. are or have all of these
Formation of urine involves filtration, reabsorption and secretion, all of which are done by the bladder.
a. true b. false