Which of these are a compound?

A. Oxygen C. an element

B. water D. air

What are thewhite cliffs of dover

In a sample of human blood which cell is more predominant: white or red?

Rachel had injections of botox in an attempt to eliminate facial wrinkles. botox contains minute amounts of botulin, an extremely lethal substance produced by bacteria, and works by blocking the release of a specific neurotransmitter from motor

Which of the following describes a pollution

The cell cycle of a eukaryotic cell describes the birth, growth, reproduction, and death of a cell. True False

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.