Explain what strata are

A river's discharge is generally greatest

Classify the organ system with the category of function it provides.

Enzymes are sensitive to pH and temperature. If an enzyme's environment is too hot, the enzyme cannot

Which of the following is not one of Chargoff's rules? a. The amount of A, T, G, and C in DNA varies from species to species, but not within species b. In each species, the amount of A = T and the amount of G = C c.

You are working in a lab with a stable, unreactive element. How many valance electrons does this element have? 4 6 2 8

What passage carries food between the pharynx and the stomach?

Coiled tube in which the greatest amount of digestion and absorption take place

Most of the world's food supplies comes from 14 species of crops. Which of these crops are the most important? A) corn, potatoes, and hay B) wheat, rice, and sugarcane C) alfalfa, rice, and wheat D) grasses, bananas, and beans

Tryptophan is an amino acid necessary for E. coli survival and growth. E. coli contain genes coding for enzymes that synthesize tryptophan. These genes are grouped together on a segment of DNA called the tryptophan (trp) operon.

Why does it make sense that the sensors and controller of body temperature reside in the brain? A. Because the brain enables the body's response to temperature changes B. Because deep inside the brain is considered the body's core C.