Evolution tends to let animals bigger or smaller?

Human Evolution Discuus the 4 different species : Australopithecus afarensis, Paranthropussp, early Homo, and Homo sapiens. how they changed physically, behaviorally, and culturally ?

are there limits to evolution?

Why does comparative anatomy sometimes fail to reveal accurate relationships?

Pick a specific animal that exists today and research its ancestor from millions of years ago. How has this animal evolved? Compare it to the ancestor and explain why certain changes may have taken place.

How does evolution work to create the diversity of life on Earth?

Lamarck proposed that evolution occurs through the following basic steps: Organisms are born with certain traits. Over the course of an organism's life, these traits gradually change due to pressures in the environment. The changes that occurred during an organism's life are passed on to its young. This idea is similar to current understandings of how evolution works, but it is not quite correct. Which of the following situations is a counterexample that disproves Lamarck's proposed pattern of how evolution occurs?   A. Even though the ability to fly would be useful to snakes, snakes cannot spontaneously grow wings.   B. Dolphins and whales have become hairless because the fast movement of the water removes all the hair.   C. A person who is a championship bodybuilder does not have children who are naturally muscular at birth.

Evolutionary biology What are 4 conditions in which natural selection favors altruistic behaviors in which the individual performs costly actions to benefit others?

Can evolution occur quickly?

explain how humans are related to each of the following animals by indicating the level of relatedness and which traits are evidence for this level of relatedness a) lamprey b) sea star c) beetle