Which of the following will lead to speciation?
a. variation in gene pool
b. lack of mutations
c. absence of natural selection

When plants use sunlight to make food, the energy of sunlight is

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

True or false: the ribosome reads the sequence of codons in mrna.