Given the general chemical formula X2O, to what group in the periodic table does the Period 2 element represented by X belong?

A. 1

B. 16

C. 2

D. 17

What type of vessel has relatively more smooth muscle and less elastic tissue?

Which tissue is correctly paired with its primary cell type? which tissue is correctly paired with its primary cell type? bone; osteoblast connective tissue proper; chondroblast cartilage; fibroblast bone; fibrocyte?

Can blood got through the plasma membrane?

What three major food molecules are recognized by scientists

Care sunt functiile frunzei

If two organisms evolve in response to each other which evolutionary pattern is demonstrated

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.