What force is responsible for the cohesiveness of water?
A) osmosis
B) hydrogen bonding between water molecules
C) negative pressure created by evaporation
D) ionic bonding
Answer: B
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A(n) ________ is a piece of DNA with all of the features necessary for chromosomal replication and which can carry large (up to 1000 kb) pieces of foreign DNA into a host organism.
What will be an ideal response?
Which of the following is not an activity of viral reverse transcriptase?
A. RNA degradation activity B. RNA-dependent DNA synthesis C. DNA-dependent RNA synthesis D. DNA-dependent DNA synthesis E. All of the choices given are activities of reverse transcriptase.
Capping proteins such as CapZ
A) cause microtubules to lengthen. B) destabilize microtubules. C) stabilize microtubules. D) cause microtubules branching. E) connect microtubules to microfilaments.
In the food chain grass mice coyotes:
A. the total biomass of all the coyotes is greater than the total biomass of all the mice. B. the mice are the producers. C. the total amount of energy contained within the bodies of all the mice in the area is much greater than the total energy in the bodies of all the coyotes. D. coyotes eat primarily grass.