Why are enzymes necessary?

to slow the rate of decomposition

to act as a catalyst in chemical reactions

to conserve the stored energy of a cell

Which of the following is not a consequence of oil spills for marine life? a. disables fur insulation b. removes nutrients from seawater c. spreads out over a large area d. makes feathers less water-repellent

When the fuel burns, hot exhaust gases are forced backwards out of the engine. Explain why this creates a forward thrust.

How are adaptations related to the environment?

What is a good description for the cell wall?

Primary succession comes before secondary, why?

Explain the goals of a sustainable development.

When are to animals classified as belonging to the same species?

Process of biological change by which descendants come to differ from their ancestors

What types of cells would be produced by meiosis?

Gregor Mendel studied the inheritance of traits in pea plants. One trait he examined was the height of the plant. Pea plants with the dominant 'T' allele grew tall, and pea plants with the recessive allele 't' were short.