Oldest rocks and ancestors would be deeper in the ground

Evolution occurring quickly due to catastrophic events

The hypothesis that physical structures with no known purpose are leftovers from an ancestor.

Populations of organisms change over time from inherited genetic changes

Popularized natural selection with his book On

the Origin of Species by Means of Natural Selection in 1859

after his observations sailing on the HMS Beagle.

Favorable genetic traits are passed on causing a survival advantage in a particular environment.

The theory that all living things are descendants of one

original living cell and evolved via natural selection.

The purposeful breeding of two individuals to produce desired traits in offspring.

Also known as selective breeding.

A diagram that shows the theory of Evolution from a Common Ancestor.

A branching diagram that shows evolutionary relationships between species

What type of anatomical structure is shown in the picture?

What type of anatomical structure is shown in the picture?

Elk with large antlers are very favorable to hunt by humans.

A male spider has a leg snapped off by a human trying to smash it. It cannot do the "dance" to perfection. The first female spider who sees him dance decides to eat him. What types of isolation is this?

Babies born before their due date (premature) often have many complications, and babies born after their due date (post mature) can be stillborn or die shortly after birth. What types of selection is this?

In a species of bird, males with really colorful feathers attract females, and really dull coloration helps camouflage from predators. Males with medium coloration aren't selected for by females. What type of selection is this?

Juliet, a grass frog in Mississippi hears Romero, a grass frog in Louisiana sing a beautiful mating call. She falls in love but is separated by mile wide river. They never meet in person. What type of isolation is this?

A female Chinook salmon swims up river and lays her unfertilized eggs in March. A male Chinook swims up the same river in June seeking some eggs to fertilize. What type of isolation is this?

What type evidence of evolution is being shown in the picture?

Cetaceans are whales and their relatives. The diagram shows some fossils of cetaceans. Which statement provides the best evidence that Ambulocetus natans is an ancestor of Basilosaurus isis?

Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family’s geographical origin provide evidence that all these animals -

Which of the following statements are true?

A. Analogous structures are structures found in different species that have similar functions resulting from a common ancestor.

B. Analogous structures are structures found in different species that have similar functions resulting from natural selection.

C. Homologous structures are structures found in different species that have similar anatomical forms, resulting from a common ancestor.

D. Homologous structures are structures found in different species that have similar anatomical forms, resulting from natural selection.

The limbs of several organisms are shown in the illustrations. Scientists sometimes compare the limbs of these organisms to look for evidence of common ancestry. These limbs provide evidence of common ancestry because they -

Scientists can determine relatedness among organisms by comparing partial amino acid sequences. The table shows four partial amino acid sequences from four organisms. Which organism is the LEAST related to the other three organisms?

This cladogram shows the evolutionary relationships among some mammals based on homologous structures. Which statement is supported by this cladogram?

The image shows part of the humerus bone in different genera of primates. Which statement is best supported by the observable structures of the different humerus bones.

Organisms with traits that are favorable to their survival and reproduction are ________ likely to pass on their genes to the next generation, and thus become ________ common in the population

Who would have stated "acquired traits" such as a giraffe needing a long neck so they stretch it over time

Mutations are important because they bring about

Why is competition important for natural selection?

According to Oparin & Haldane, all of the following were thought to compose early earth's atmosphere, except.....

The illustrations below show the embryos of a fish, a reptile, and a bird at the same stage of development. Which of the following can be concluded from the illustrations?

Based on fossil evidence, scientists concluded that whales evolved from hoofed mammalian ancestors that lived on land. New evidence confirms this and suggests that among the hoofed mammals, the hippopotamus is the closest living relative of whales. Which of the following was the most likely source of this new evidence?

Snakes such as boa constrictors and pythons have tiny leg bones buried in their muscles. These leg bones are vestigial structures that have little or no known function in snakes. Which best explains the presence of these vestigial structures in snakes?

Which of the following observations most strongly supports evolutionary links between fossil organisms and modern organisms?

For many years, biologists disagreed about whether giant pandas are more closely related to raccoons or bears. Which of the following types of evidence was most useful in determining the evolutionary relationship of giant pandas to other animals?

A trait or change in lifestyle that helps a plant or animal survive in its environment

Species not closely related evolve similar traits due to their similar environment

Species from the same ancestor accumulate differences over time

Select the word that goes best with the image

One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?

Which types of organisms developed first due to the early environmental conditions on Earth?

The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids. Which of the following describes why the Miller-Urey theory is widely accepted today?

The diagram below shows a proposed theory of the origin of eukaryotic cells, called endosymbiosis.

Which of the following explains why cells that contained mitochondria-like organelles had an evolutionary advantage?

The theory of evolution suggests that earth’s first oxygen came from

Endosymbiotic theory states that chloroplasts and mitochondria were once what?

The theory of endosymbiosis proposes that chloroplasts were once which organism?

The endosymbiotic theory states that certain organelles within eukaryotic cells may have originated as independent organisms.

Therefore, it is possible that mitochondria were once ____________________.

Which of the following refers to the evolution of life from nonliving materials?

Which of the following refers to gradual changes in living organisms resulting in more complex organisms?

What is the idea that living organisms come from nonliving matter?

What is a scientific law that states that living organisms come only from other living organisms?