Which of the following does NOT apply to
parasitoids?
a. insects
b. kill animals on which they feed
c. host usually survives
d. larvae develop in host body
e. can beeffective biocontrol agents
Answer: c
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Growing bacteria that degrade an environmental pollutant, which is also toxic to the cells at artificially high concentrations, might require ________ to obtain a sufficient population for biochemistry studies
A) a continuous batch culture B) a second growth substrate to keep the culture in exponential growth phase C) steady state growth kinetics D) the use of a chemostat
Pathologists check lymph nodes near tumors for cancer because (select all correct choices):
A. lymphatic tissues are at high risk for transforming into cancer cells. B. lymph nodes near a tumor collect tumor cells that have become metastatic. C. malignant tumors preferentially invade lymph nodes. D. it is easier to detect cancer cells that are formed in lymph nodes. E. cancer cells will always turn a different color in lymph nodes.
The electrons flowing through the electron transport chains in photosynthesis come from and end up being carried by _.
Examine this image, showing an electron transport chain in photosynthesis.
A. oxygen; NADPH
B. oxygen; water
C. NADPH; water
D. water; NADPH
E. NADPH; oxygen
Polyploid organisms ________
A) are transgenic B) are created from ES cells C) are knockout organisms D) have different numbers of each chromosome E) have extra complete sets of chromosomes