Maurice is a high school student who has a romantic interest in a girl in his social studies class. During class today, she wore a tight outfit and looked at him and smiled. Maurice was highly aroused by this and couldn’t stop thinking about her the rest of the school day. At football practice after school, he played extra hard and was commended by his coach for his effort, agility, and strength. His motivation to play hard on the field is an example of:

What is produced during the krebs cycle? co2, atp, nadh, and fadh2 pyruvate, co2, and atp atp, fadh2, and h2o h2o, adp, and nadh

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.