Which of the following come from types of organisms that lived during

only one short period of time and that are used to determine the

relative age of rocks?

a. imprints

b. index fossils

c. trace fossils

d. extrusions

What makes water polar

Suppose that after 22 months, guppies from the transplanted population were returned to the source pool. What would most likely happen to those guppies?

Living organisms contain many complicated molecules. Which of these is a reason that carbon is important in these molecules?

Suppose that life exists elsewhere in the universe. all life must contain some type of genetic information, but alien genomes might not consist of nucleic acids and have the same features as those found in the genomes of life on earth.

The allele pairs of an individual organism are called its?

About 10% of women experience severe pain at the entrance of the vagina. this is known as

Which of the following correctly describes homeostasis in protists? (A) Paramecium maintain homeostasis by swelling and bursting (B) Vacuoles allow water to enter and exit the paramecium (C) Flagella allow paramecia to move through a substance (D)

List 4 observations that indicate that a chemical reaction may be taking place

Which statement describes the light reaction of photosynthesis? A. Water molecules are combined to make food. B. Air and water create energy for a plant. C. Carbon dioxide is put together with glucose. D. Water molecules are split apart.

4. Where are the two places we find receptor proteins? Inside the target cell, target cell plasma membrane Signaling cell plasma membrane, inside the target cell Signaling cell plasma membrane, ligand Target cell plasma membrane, signaling cell