Why were small-beaked medium ground finches (Geospiza fortis) most affected by the drought on Daphne major in 1976? A. Being small, they were less able to withstand the high temperatures during the drought B. The type of food that they eat, insects, was depleted C. Their beaks were too small to eat the remaining food, large nuts D. Their territory was taken by large-beaked medium ground finches

What happened to large animals in the areas where our species migrated?    A. We domesticated them soon after we migrated into their area   B. They died out soon after we migrated into their area   C. Nothing happened to large animals when we migrated into their territories   D. They increased in number soon after we migrated into their area

Which statement best explains why an understanding of life-history trade-offs is important when examining the fitness of an organism? A. Because individuals may not be producing the maximum number of offspring they possibly can in any particular breeding season. B. Because in any particular breeding season, individuals may need to produce fewer offspring to enhance their own survival. C. Because individuals need to live longer, so they will not produce the maximum number of offspring each season. D. Because when individuals need offspring, they can choose whether to reproduce or not.

Please answer the attached question

Scientists found that different beak shapes correlate with different mating songs in Darwin's finches. Which hypothesis does this support?   A. Darwin's finches are not different species according to the Biological Species Concept.   B. Adaptation to different food sources led to behavioral isolation in Darwin's finches.   C. Adaptation to different food sources likely occurred after reproductive isolation in Darwin's finches.   D. Mating songs are primarily determined by the acoustics of different beaks.

The accoumulation of higher levels of mercury in large predatory fish is a result of? A. Genetic modification B. Biomagnification C. Food addtivies D. Irradiation

Part A)  A biologist notices that the same species of Tortoise exists in Texas and Mexico.Yet these tortoises have somewhat different life histories. This is probably due to the diverse array of__that each tortoise has with different components its own environment.a. interactionsb. conversationsc. adaptationsd. all of thesePartB.). If water amounts and food production capabilities decrease, what can happen to carrying capacity?a. increase b. decreasePart C. Alabama should be a desert but it is a lush green environment. What keeps us from being so dry?a. Hadley Cellsb. Ocean Gyresc. Mountainsd. all of the above

A researcher who is interested in the number of individuals in a population of black bears and their movement patterns would most likely use which method?    A. Area-based counts    B. Point sampling    C. Line transects    D. Surveys for black bear tracks    E. Mark-recapture