Biology 20 Ecology and Evolution Review

Soil, water, sunlight, carbon dioxide, oxygen, and nitrogen are all considered

Which of the following is a biotic factor of an ecosystem?

Most people in Canada would be classified as

A changed in a species over time is called

Which of the following describes what all members of a population share?

The preferred form of nitrogen that can be directly used by plants is

A particular area where living things interact with non-living and living things is called a(n)

In an ecosystem, each level is capable of passing about ___% of its energy to the next level.

The sequence for the transfer of energy through the trophic levels indicated in a pyramid is

There are very few embryonic similarities between humans, pigs, and fish.

A tomato plant is

The symbiotic relationship that harms one species while another benefits is

A growing forest is valuable because it

Homologous structures always have similar origins and similar functions.

Bacteria serve an important role in the nitrogen cycle because they

An example of patterns of distribution which has been used by some to support evolution is

What are dichotomous keys used for?

Why do some people believe transitional fossils provide evidence for the theory of evolution?

Which trophic level has the least energy?

According to Darwin, all organisms of earth must be connected by a

Natural selection depends on the presence of what in a population?

A trait that helps an organisms survive and reproduce is a(n)

A group of organisms that can mate with each other and produce fertile offspring is called

What organism fills in the blank? Sun -> ____ -> Primary Consumer

What is the study of ecosystems called?

The biotic process that adds carbon dioxide to the carbon-oxygen cycle is

An abiotic factor of an ecosystem is its

The relationship between a rabbit and a mouse living within a food web is called

What's the difference between a food chain and a food web?

Punctuated Equilibrium states that

The process by which individuals better adapted to the enviro are more lively to survive is

Remnants of organisms that lived in the past are called

Forests are not important in recycling of carbon dioxide.

Plants are

The ability of an organisms to both survive AND reproduce is its

Arthropods (insects) have limbs with joints. So do reptiles. This is an example of a(n)

The phosphorus cycle differs from the other biogeochemical cycles because

A large fish is considered to be a tertiary consumer because it

A change in a DNA sequence is called

Which of the following is a community?

How is molecular biology used by some to provide support for the theory of evolution?

One of the scientists who proposed the "official" theory of evolution by natural selection is

Charles Darwin theorized that Galapagos finches developed different beak types because they

What did Lamarck say was the reason for changes in populations?

An ancestral fossil would be found above its descendants in the rock layers.

The process through which nitrogen gas is converted into ammonia is known as

A wolf eats a rabbit and this rabbit fed on grass. The wolf is

How are fossils distributed throughout the rock layers?

All the organisms and geographic features dependent on each other in an area is considered a(n)

All organisms have roles to play within their ecosystem. This is known as their

Which farm activity listed harms the nitrogen cycle?

What is the relationship between organisms in mutualism?

Which of the following is NOT a way scientists determine the relationship among species?

The difference between gradualism and punctuated equilibrium is the

Which scientist proposed that parents passed on acquired characteristics?

The remora rides attached to sharks, giving it protection, and it feeds off remains of meals.

Which classification is most specific when identifying organisms?

The same species, living in the same ecosystem or habitat, is called a

Bird wings and bat wings are analogous structures.

The most likely cause for algal blooms observed in ponds is the