AP BIOLOGY

Detailed explanation-1: -Acquired characteristics would be used to describe this situation because the antelope that survived had different characteristics from the antelope that were killed.

Detailed explanation-2: -When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which best describes this situation? Individuals pass along acquired characteristics to the next generation. Natural selection is a random process.

Detailed explanation-3: -The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.

Detailed explanation-4: -The essence of Darwin’s theory is that natural selection will occur if three conditions are met. These conditions, highlighted in bold above, are a struggle for existence, variation and inheritance.

Detailed explanation-5: -Consider the giraffe, for example. A Darwinian theory of evolution posits that it was through random variation that some giraffes had longer necks than others. Thanks to their long necks, they were able to reach leaves high up in the trees in their environment.