Why are there hundreds of different protein channels?
a. they work for different molecules
b. the cells make multiple protein channels just in case one dies
c. in case molecules have to go from a low to high concentration
d. smaller molecules will go through protein channels to save space

Compare and contrast the relative importance of the sporophyte vs gametophyte generation between nonvascular plants (bryophytes), seedless vascular plants and seed plants, and explain the ecological significance of a larger sporophyte generation

What is the mrna strand that would be copied from this dna strand

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits