Amy gets a new kitten. while they are playing, the kitten scratches amy. after a week, some of the scratches on amy’s arm blister and she develops a fever and swollen lymph nodes. which mode of disease transmission could transmit cat-scratch disease from the kitten to amy? a. oral b. aerosol c. vector fomite d. direct contact

Photosynthesis converts solar energy into what type of energy?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

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.