The place where two plates come together is known as

A collision between two pieces of continental crust at a converging boundary produces a

Scientists think that convection currents flow in Earth's

A rift valley forms at a

A place where two plates slip past each other, moving in opposite directions, is known as a

Most geologists think that the movement of Earth's plates is caused by

What is Pangaea?

What is the correct order (starting from the surface) of Earth's layers?

Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?

When a flea is living on a dog, the dog is the

The study of how things interact with each other and their environment is called

A close relationship between two species that benefits at least one of the species is called

The struggle between organisms to survive in a habitat with limited resources is called

The behaviors and physical characteristics of species that allow them to live successfully in their environment are called

An organism's particular role in its habitat, or how it makes its living, is called

The place where an organism lives and that provides the things the organism needs is called

Which of the following is a biotic factor in the prairie ecosystem?

The very slow movement of the continents is called

What do producers release as a result of photosynthesis?

The first organism in a food chain is always a

Which biome receives less than 25 centimeters of rain per year?

Vultures, which feed on the bodies of dead organisms, are

Which biome is extremely cold and dry?

A group of land ecosystems with similar climates and organisms is called a(n)

The typical weather pattern in an area over a long period of time is called

In an energy pyramid, which level has the most available energy?

A diagram that shows the amount of energy that moves from one feeding level to another in a food web is called a(n)

The many overlapping food chains in an ecosystem make up a(n)

If a kestrel eats a mouse that eats grass, the kestrel is a

Which of these consumers is an herbivore?

Consumers that eat both plants and animals are called

What genetic disorder results in abnormally shaped blood cells?

A carrier is a person who has

In an attempt to produce a potato that tastes good and also resists disease, plant breeders crossed a potato variety that tastes good with a variety that resists diseases. This technique is an example of

Which of these is an example of the benefits of genetic engineering?

Cloning results in two organisms that are

What would be the best way to predict the probability of a baby having cystic fibrosis?

What is a karyotype?

Which genetic disorder causes the body to produce unusually thick mucus in the lungs and intestines?

Genetic disorders are caused by

What is a pedigree?

How does a geneticist use pedigrees?

Which combination of sex chromosomes results in a male human being?

The intense heat from Earth's interior that warms the magma beneath Earth's surface is called

One example of an energy-efficient device is a(n)

In an electric power plant, turbines are turned using which type of energy from steam?

Which of the following is an example of energy conservation?

Energy conservation means

The splitting of an atom's nucleus into two smaller nuclei is called

Wind energy is actually an indirect form of