Place the following plant groups in sequence from the first to most recent appearance in the fossil record. a. gymnosperms b. mosses c. angiosperms d. ferns

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

One gene can influence trait(s). one trait can be determined by gene(s).

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?