Which of the following would be an example of diffusion occurring in the cells of the human body? Q1. The exocytosis of a large protein out of the cell. Q2. A white blood cell engulfing a bacteria cell. Q3. Oxygen molecules moving from oxygen rich air in the lungs to the red blood cells. Q4. The movement of sodium up its concentration gradient in a nerve cell.

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.