Bio 212 Exam 1 Practice Questions and 100% Correct Answers

Which characteristic of a cell most influences the rate of movement of materials into and out of the cell? Surface Area Compared with a smaller cell, a larger cell of the same shape has ________. less surface area per unit of volume When are my office hours? Monday through Thursday 1-2pm, but you can make alternative arrangements. In class, we discussed many examples of why a high surface area to volume ratio is an advantage to organisms. The mammal outer surface in a very cold environment could be considered a disadvantage if they had a high surface area to volume ratio. True or False? True A male peacock's tail is a classic example of evolutionary trade-offs. The large tail is energetically costly to produce and to carry around and may make them more susceptible to predation, but females select males for mating based on the size and shape of their tails. The fact that the trait of showy tails on males persists and increases in peacock populations suggests that __________. the benefits from the adaptation exceed the costs How many post-topic quizzes can you drop? 2 How many Engagement Point scores can you drop? lowest 2 scores will be dropped As the size of a cell (or organism) increases, what happens to the surface area to volume ratio? decreases You observe two female fish of the same species laying eggs. One female lays 100 eggs and the other female lays 1000 eggs. Which one of the following is LEAST likely given the limits of fitness trade-offs? The eggs from the female laying 1000 eggs have larger yolks than the yolks of the eggs from the female laying 100 eggs. Natural selection involves energetic trade-offs between high survival rates of offspring and the cost of parental care. Tru