Which best describes the different features of plant life cycles?

a. a spore is a diploid cell that is produced by mitosis.
b. a zygote is a diploid cell that is produced by fertilization.
c. a spore is a haploid cell that is produced by fertilization.
d. a zygote is a haploid cell that is produced by meiosis.

answer(1) tab per dose.;

the correct answer is:

they show how organic molecules could be made from earth's early atmosphere.  

explanation:

the miller–urey experiment lasted a chemical experiment that mimicked the forms created at the time to be present on the early earth and tested the chemical element of life under those circumstances. the experiment confirmed alexander oparin's and j. b. s.