AP Environmental Test 2 Review

In speciation, two species interbreed to form one new species.

Which of the following is an area that is NOT a likely candidate for primary succession?

Survival of the fittest can refer to those individuals that leave the most descendants.

A stable group of plants and animals that is the end result of the succession process is known as what? 

Non-native species can spread rapidly because they do not face _________.

Primary succession starts with the arrival of airborne pioneer species such as lichens that do not need soil to survive.

When a species becomes extinct over a large region, but not worldwide, it is called ____.

An ecosystems ability to remain unchanged when being subjected to disturbance is known as what?

Changes in the DNA molecules of a gene in any cell that can be inherited by offspring are called ____.

Under rapidly changing environmental conditions it is better to be a specialist species.

Which of the following is least associated with biodiversity?

For natural selection to occur, an adaptive trait ____.

Long-term climate changes determine where plant and animal species can survive.

What are amphibians?

Under certain circumstances, natural selection can lead to an entirely new species. a process called ____.

Pollinators, such as bees, are usually considered keystone species.

The Bottleneck effect is when an occurrence reduces the number of surviving animals thereby reducing the gene pool size.

The ability and rate of an ecosystem to recover from a disturbance and return to its pre-disturbed state is called what?

The process in which individuals with certain traits are more likely to reproduce under certain environmental conditions

The variety of habitats that exist within a given region is called what?

What adaptation may enable us to live more sustainably by copying the ways in which nature has sustained itself.

Biological evolution by natural selection is when genes ____, individuals ____, and populations ____.

The definition of ________ is any two organisms that can interbreed and produce viable offspring.

Keystone species have a large effect on the types and abundances of other species in an ecosystem.

What adaptation has allowed humans to increase our chances of survival and reproduction through gripping and using tools

If two animals can have a baby then that means they are the same species.

The abundance of individuals within each species is called species richness.

What term describes the number of different species in a given area?

The amount of a species is controlled by factors where levels exceed the min or max tolerance level is Law of Tolerance.

 The extinction of certain amphibian species could lead to the ____ of certain species of other animals

The total number of species in an area is called species richness.

A __________________ lives under a very narrow range of conditions.

A ____________ can live under a wide range of biotic/abiotic conditions

If two animal's babies can have babies then they are the same species.

The earth’s biodiversity is determined by the balance between ____.

A temperate rain forest is likely to have high species evenness and low species richness....

Most mutations occur because of exposure to artificial external agents, such as radiation.

The environmental factor that is most often in short supply is called that what? 

In geologic history, mass extinctions have been followed by an increase in species diversity.

Which of the following would NOT be a limiting factor for soil?

The number of species in a region or habitat (in a community or ecosystem) is called what?

What term describes the number of different species in a given area?

The process where life changes over time through changes in genes of populations of organisms through generations is?

Many of the earth’s plant species depend on ____ to pollinate their flowers.

The diversity that enables life on the earth to adapt and survive environmental changes is called ____.

Many of the world’s amphibian species are adapting rapidly to the environmental changes in their habitat.

Species that provide early warnings of damage to a community or an ecosystem are called ____.

Geographic isolation may result from ____.

Today, the ____ is among the most threatened of all species in the world, with only 1,600 to 3,000 left in the world.

A species with a broad niche is considered a(n) ____.

Which of the following is NOT an example of a keystone species? 

 Our fossil record probably represents ____ of all species that have ever lived.

What is the ability of one or more organisms in a population to tolerate a chemical designed to kill it?

Scientists are now able to produce desirable traits in some organisms by editing segments of its DNA which is know as?

Endemic species are particularly vulnerable to extinction.

Genetic engineering allows scientists to transfer genes between different species that would not interbreed in nature.

According to some scientists, the more diverse an ecosystem is, the ____ it will be.

Pollinators, such as bees, are generally not considered keystone species.

Keystone species give early warning signs of damage or danger to a community.

The fossils found so far probably represent about 50% of the species that have ever lived.

_______________ have a larger impact on the community, if removed, than other species.

The role a species plays in its ecosystem is its ____.

Keystone species have a larger impact on the community, if removed, than other species.

The earth has sustained life for ____ years.

Primary succession begins in a place that already has soil and was once the home of living organisms.

Under rapidly changing environmental conditions it is better to be a specialist species.

Which of the following is another name for a nonnative species?

Most of what we know about the history of life on the earth comes from fossils.