During what phase do chromosomes form

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca