Earth's mantle is

A) a layer of molten metal

B) a layer of hot rock

C) a layer of rock that forms Earth's outer skin

D) a dence ball of solid metal

3) Which group of muscles flexes the knee joints? What is the name of one of them?

John's class has been studying blood type and donations. John is not sure what blood type he has. At dinner, John asked him mon if she knew his blood type. John's Mom has type A blood and his Dad has type B blood.

What is the consequence of love

In meiosis if a parent cell has 8 chromosomes, each daughter cell will have how many chromosomes?

Which type of organism evolved later than the others? mammals amphibians reptiles fish

If there is a possibility of four different genotypes in the offspring that result from a dominant-recessive inheritance, and if the couple has four children, would they definitely have children with one expressing each genotype?

The ovaries are located in the ___ cavity.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.

As ocean water in a tide pool warms and evaporates, the remaining water becomes a. cooler. b. saltier. c. calmer. d. darker.

Drake is comparing time people spend playing games on Xbox versus Playstation. In his study, individuals ages 10 - 15 are given Xbox's and individuals ages 16 - 25 are given Playstations.