Which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell?

Which one of the following would you predict is an allosteric inhibitor of the Krebs cycle enzyme, α-ketoglutarate dehydrogenase? A) citric acidB) α-ketoglutaric acidC) NAD+D) NADHE) ADP

Who is responsible for our current climate change? Why? A. Humans, Increased release of CO2 from burning fossil fuels. B. It is natural, it has happened at the same rate before. C. We don't know, there is no scientific evidence for it. D.

Kelp plant have been known to grow up to

Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful. Why is there a difference? Ctenophores do not possess nematocysts. Ctenophores only use nematocycts for feeding, not for defense.

Are humans scavengers or consumers?

At which location would an object's weight be the greatest? on Pluto, earth, mercury, the moon

Imagine a situation in which the number of urea leak channels increased dramatically in the ascending limb of the loop of Henle. What could be one likely consequence of this situation?

Archaea differ from bacteria in that archaea A) Have diverse cell wall compositions B) Lack nuclei C) Use organic compounds for food D) Reproduce by binary fission E) Are prokaryotic

What is the difference between parasite and a saprotroph?

A standard of comparison in an experiment is called the