Which condition is essential for natural selection to result in a new species?

a. a static environment

b. a long life span

c. unlimited resources

d. an inherited variation

Ideally, sustainable development should a. put the protection of the environment ahead of human needs. b. provide for human needs at the expense of the environment. c. use more natural resources to make goods to meet human needs. d.

Carbohydrates are used by the body as a source of quick energy, and are made up of

What s the name for the compound with the formula NaF 1. sodine floride 2. sodium flouride 3. sodium florine 4. fluorine sodide

A cell in G1of interphase has 12 chromosomes. How many DNA molecules will be found per cell when this original cell progresses to the following stages? G2 of interphase? Prophase of mitosis? After cytokinesis following mitosis?

The molecule cf4 (is, is not) planar and (is, is not) polar. 1. is not; is 2. is; is not 3. is not; is not 4. is; is

When a fly lands on a leaf of a Venus fly trap (Dionaea muscipula), the leaf closes. This is an example

How Do Cells Get Energy How do cells get energy?

What do manufacturers use water for? A. to transport people B. to irrigate farms C. to create tools D. to produce wood and paper products

Two hydrogen bonds are formed between all base pairs (C to G and A to T). a. true b. false

Why do we need so many muscles in our hands wrists and arms?