Author: Anonymous

Converting nitrogenous waste into , seen in birds and reptiles, costs the most energy, but offers the least toxicity.

The physiology of animals and plants obey physical laws. As such, the water potential determines the passive flow of water. 1. FOR A FRESHWATER FISH: a. Describe the difference in water potential between the fish and its watery environment (in terms of relative osmolarity); include the passive flow of water between the fish and its environment. b. Describe at least one way the freshwater fish maintains osmotic homeostasis. 2. FOR A PLANT: a. Describe the difference in water potential (high vs. low) between the soil and the atmosphere on a sunny warm day after a rainstorm (so not too hot) when the plant is photosynthesizing. b. Use the words stomata, cohesion, adhesion, and tension to describe water transport in the xylem of a plant.

Phloem transport is described as being from source to sink. Which of the following would most accurately complete this statement about phloem transport as applied to most plants in the FALL? Phloem transports ________ from the ________ source to the _______ sink.

A biologist discovers the carcass of an animal that was recently partially eaten by a predator in the jungle. The animal’s heart was large, well-formed, and had four chambers, with no connection between the right and left sides. A reasonable conclusion supported by these observations is that the…

The steroid hormone aldosterone affects only a small number of cells in the body because…

are first digested in the oral cavity with enzymes secreted in the saliva.

Which of the following has the lowest (most negative) water potential?

Which of the following antibiotics does not provide coverage against methicillin‑resistant Staphylococcus aureus (MRSA)?

Which organism is reliably covered by clindamycin?

Which antimicrobial is bacteriostatic rather than bactericidal against Enterococcus?