PLEASE ANSWER THESE THREE ( TIMED ) 1. during which phase is the DNA duplicated?
2. what is the relationship between chromatin and chromosomes?
3. in which phase are chromatids pulled apart?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

What is the key to the recognition of codominance?