During cytokinesis the chromosomes unwind and become a pile of very long, thin, thread-like dna and the cell goes back to looking "normal" until mitosis begins again. brainstorm with your group ideas why the dna must coil up into chromosome structures before it divides.

Which of the following is the most likely result of converting forestland to urban development? a. the amount of land available for lumber production decreases. b. fewer trees are needed because cities are made mainly of concrete. c. people discover more efficient ways to grow trees. d. the price of lumber goes down.

Explain how organisms could be harmed by high levels of salt from roadways?

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.