The A, T, C and G in DNA are really ...

phosphates

nitrogen bases

sugars

amino acids

To meet cellular needs for food, water, energy, waste removal, multicellular organisms have developed various specializations, such as organs, and organ systems.

What monosaccharide is commonly found in all disarccharides

The wing of a bat, the arm of a human, and the flipper of a whale are structurally different even though they have similar bone structure. what is the main reason for these structural differences?

What are transgenic organisms? Give one advantage of a transgenic crop.

How does hibernation maintain body temperature?

Which organelle is responsible for poviding a barrier?

Which of the following are outputs of the process of photosynthesis? A. Energy from food and oxygen B. Energy from the sun, carbon dioxide, and water C. Nutrients from food and oxygen D. Food and oxygen

Which of the following are examples of ways humans and plants have coevolved? Pick all that apply A. Humans have bred plants to use as food B. Plants provide a source of nitrogen C. Humans aid in pollinating plants D.

By what mechanism does PI-3 phosphate promote activation of protein kinase B (PKB) ? a. recruiting PKB to the plasma membrane b. recruiting the activating kinase PDK1 to the plasma membrane c.

What is the definition of "Mass"?