Evolution Quiz 1

overpopulation

A frog have more off spring than can survive on available resources.Which behavior is this an example of?

birds that have longer beaks

According to the concept of "survival of the fittest," if a population of birds eats worms that they find deep under ground by using their beaks, which members of the bird population would be more fit?

competition among individuals for available food sources

Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited.

Island finches resembled mainland finches, but were not the same species

During a trip to the Galapagos Islands, which observation led Charles Darwin to suspect that organisms change over time?

The organism is better able to survive and pass on traits to offspring than competing organisms.

In terms of natural selection, what is the best description of an organism that is fit?

Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.

In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?

fur color that closely matches the eucalyptus bark color

Koalas are marsupials that are found in eastern Australia. Although their ancestors lived mostly on the ground, modern koalas spend most of their time in eucalyptus trees. This is possible because their hands and feet have strong claws and opposable digits.What other adaptation could have helped koalas as they evolved from land dwellers to tree dwellers?

survive

Natural selection is a process by which organisms that are better adapted to their environment tend to

Can selective breeding in nature lead to a new species over time?

Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work after he returned home from his voyage prompted him to ask which question?

Point 4

Veronica wrote Charles Darwin's main points on the board, but she made a mistake in one point.1. Since more offspring are produced than an environment can support, organisms within a population must compete for resources to survive.2. Due to variations within the population, some competitors will be better equipped for survival than others.3. The best-equipped organisms will survive and will produce well-equipped offspring. 4. Variations that help with survival will be passed on to future generations and will rapidly change the whole population.

a process that selects variations that help with survival and that spreads the variations to more offspring

What is natural selection?

Natural selection leads to evolution.

Which best describes the relationship between evolution and natural selection?

It is the primary mechanism for evolution.

Which statement describes natural selection?

Variations that decrease reproductive success are more likely to be passed on.

Which statement would least likely be used to describe variation?

He proposed that natural selection is the primary mechanism of evolution.

Which was Charles Darwin's contribution to the study of biology?