Which group of fish do scientists believe amphibians evolved from?

A. jawless fish

B. cartilaginous fish

C. bony fish

D. lancelets

Suppose two brown haired parents have a red haired child what are the genotypes of each parent

What Monomer units make up carbohydrates?

The process by which oocyte-penetrating enzymes are prepared for release is called

Endoplasmic reticulum is best described as a

Elemento vital para todas las especies que habitan el planeta

Aquaporin allows water molecules to move very rapidly across a plasma membrane. what would be the best definition of this process?

Which best describes the advantage of pest resistance? Pests are mutated and tolerate more. Pesticides become less effective. Farmers do not have to use harsh chemicals to save their crops. Farmers can kills weeds without killing their cash crop.

Which is better 1 big cell or 4 small cells

Describe how scientists can directly measure the movement of tectonic plates

Which of the following is false? A. the graduation rate in a city and the rate of unemployment in a city is a positive correlation B. the cost to mail an envelope and the weight of the envelope is a positive correlation C.