The Earth's crust is divided into how many major plates?

15

25

3

7

How do hormones relate to the estrous cycle?

Specialized cells conduct many different functions. a. True b. False

Q6.7. if a person is homozygous for the δ32 allele of the ccr5 gene, how many of the four daughter cells produced by meiosis will have the δ32 allele?

Which statement is not part of the cell theory a - cells may vary in size but have the same shape b-all organisms are made of cells c - all cells carry their own life activities d - new cells arise only from other living cells

Which organ produces estrogen and progesterone? Uterus Ovaries Fallopian tubes

Thirty-six colonies grew in nutrient agar from 1.0 ml of undiluted sample in a standard plate count. How many cells were in the original sample?

Why is it difficult for most chemical reaction in living things to occur without enzyme?

Cells can make certain molecules when needed for a certain function. What happens when those molecules are no longer needed? They float freely in the cell. They return to the cell nucleus. They are broken down. They are stored for later use.

Metamorphosis is a type of homeostasis. a. True b. False

Match the layer of the earth with its best description. 1. inner core a. plastic portion of the upper mantle of the earth 2. outer core b. made of large plates that move 3. lower mantle c. layer just outside of the outer core 4. upper mantle d.