The sugars and phosphates in the "backbone" of a dna strand are held together by

What characteristics were indicative of members of the genus australopithecus? small brain, small teeth, at least some bipedal ability large brain, small teeth, at least some bipedal ability large brain, large teeth, at least some bipedal ability

Which form of cell transport allows small molecules to move from an area of higher concentration to an area of lower concentration without energy being required from the cell? A. osmosis B. pinocytosis C. phagocytosis D. simple diffusion

Which section of the brain is responsible for maintaining homeostasis? 1. Hypothalamus 2. Ovary 3. Pancreas 4. Testicle

In a, are (Y) and are (y). A=4 B=1 C=2 D=3

What does a cell surface area to volume ratio affect

Why does the translation of a protein destined for the lumen of the er slow or cease in the cytoplasm?

What organelle carries out photosynthesis

Which of the following elements can be found in all lipids? A) Oxygen B) Sulfur C) carbon D) Hydrogen E) Nitrogen

When a bird eats a small insect it can be considered a secondary consumer but what is the bird considered as when it eats seeds?

Desert animals, such as the kangaroo rat, need to conserve water. These animals have larger kidneys than do animals that live in moist environments and thus need not conserve water.