Life Science Big Review #2

______ extinctions can be caused by volcanic eruptions.

A mammal's gestation period is the length of time

Cell respiration is the opposite of photosynthesis because what one cycle uses, the other produces.

A pasture gradually returns to a forested state. This is secondary succession.

What theory accounts for the gaps in the fossil record?

Which of the following flows through ecosystems in one direction?

Gene therapy is used to treat patients with cancer.

A species is a group of similar organisms that

Mutualism is any close relationship between different species.

Which of the following is an inherited trait that increases an organism’s chance of survival and reproduction?

A community consists of all the organisms in an ecosystem that belong to the same species.

Species go_____ when they cannot adapt to environmental changes.

Which of the following is NOT part of the water cycle?

How is the gelatin similar to a type of fossil?

Which term refers to a species creating more offspring than can possibly survive?

Mutations cause changes in _____.

To determine a fossil’s actual age, scientists analyze ______elements in rocks near the fossils.

As eutrophication occurs, populations of algae grow. How does this speed upsuccession?

Biological evolution is the change over time of populations of_________ organisms.

Which comparison of these provide the best evidence that they are related?

A symbiotic relationship in which both partners benefit is called?

How do remains become petrified fossils?

An adaptation _____.

Most mutations occur randomly.

How does natural selection lead to evolution?

What happens to the parts of food molecules as matter moves through an organism?

In an undisturbed rock formation, the rocks on the bottom are the oldest.

What month is the official first day of summer in the Northern Hemisphere?

If two organisms look very similar during their early stages of development, this is evidence that the organisms

What theory proposes that evolution occurs steadily in tiny changes over long periods of time?

Darwin concluded that organisms on the Galápagos Islands

A segment of DNA is a _____.

Food we eat has not been modified through selective breeding.

In a predator-prey relationship, _____.

Which of the following would eat a dead rabbit?

Water is a product of cellular respiration.

Only the younger rocks contain fossils of complex life forms.

1) A ____ is part of the DNA code on a chromosome.

Many horses sport a reddish-brown coat, mane, and tail. What is the name of this coat colour?

In what form is energy that is NOT used for life processes released from living things?

Misspelling a word is like_________in a gene.

Consumers produce their own food.

The existence of a predator is a_____ factor on the population of rabbits in an area

The genes and proteins of what animal would you expect to be more similar to the genes and proteins of a dog?

All organisms on Earth have _____that are made of DNA and function in a similar way.

In sedimentary rock, the youngest fossils are usually found in the deepest layers.

A population of beetles changing from yellow to brown and surviving better is an example of?

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

Which of the following steps in the nitrogen cycle takes place after animals eat plants?

What is an example of an environmental extreme that an organism might need to adapt to in order to survive?

Humans can change a species' ______ by choosing which organisms will reproduce.

What involves the reproduction of organisms best suited to their environment in greater numbers?

The large muscle that enables mammals to breathe in and out is called the

Which of the following is a behavioral adaptation?

Heartworm in a dog is an example of ?

Hawks hunt and eat mice. Hawks and mice have a________relationship.

Which characteristic is NOT common to all mammals?

Which of the following organisms would NOT be in the first trophic level of an energy pyramid?

Mutations are always harmful.

Which of the following is NOT a way that carbon is stored in the environment as a fossil fuel?

The end product of aquatic succession is a new________ ecosystem.

The changes over time in the inherited traits of a type of organism are __.

Products of selective breeding have ________________and phenotypes that are very different from the original ancestor.

What is the function of the canine teeth in most mammals?

Unlike most mammals, bats are able to

Energy, just like water, cycles through ecosystems.

The bones in the human arm and whale flipper are similarly arranged, which statement best describes this?

What is the difference between a community and an ecosystem?

Which process can release carbon to the air and into the soil?

Chloroplasts are the location of photosynthesis.

Fur is an adaptation that allows mammals to

A difference in beak shape among members of the same finch species is an example of variation.

What did Darwin observe about finches in the Galápagos Islands?

Chemosynthesis and photosynthesis are both processes that produce food.

What is the effect of the growth of a population in an ecosystem?

Available energy increases as it is transferred from one organism to another in a food chain.

Ecological succession in new areas of land with little or no soil is secondary succession.

Elements such as oxygen, nitrogen, and carbon cycle through a system once.

Which mythological creature lends its name to a US city, an Irish park, and a Harry Potter novel?

Which of these is a limiting factor?

Which of the following could be illustrated by the bird eating the fish?

By what name is the American fast food chain Burger King known in Australia?

An empty space called a cast is formed when an organism buried in sediments dissolves.

The only traits that can be acted upon by natural selection are those that are controlled by ?

Ecological succession can begin when seeds are carried to bare areas by birds or the wind.

A symbiotic relationship that benefits both species is referred to as commensalism.

When looking at species from millions of years ago compare to the modern day horse, what do the bones show us?

Which of the following are NOT parts of the water cycle?

Runoff fertilizer and livestock waste from farms can add to the______ of a pond.

Which of the following would eat a hamburger with lettuce on it?

How do scientists determine the actual age of fossils using radioactive elements?

Which organism has the most energy available in the food web shown?

Small changes in traits that cause variation are frequently caused by _____.

Nitrogen, as it is found in the atmosphere, can be used by plants and animals.

Which is a model of feeding relationships?

Birds play an important role in the environment by

Which of the following is most likely to become preserved as a fossil?

Differences between members of the same species are called

Sucrose molecules break down during cellular respiration.

Which of the following is NOT an example of how bacteria aid in the nitrogen cycle?

A symbiotic relationship in which one species benefits and the other is not affected is?

Energy cycles through ecosystems because it returns to the Sun.

What evidence is most important when using relative dating?

Living and nonliving parts of an environment together are referred to as an ecosystem.

If a buzzard and a coyote both need the meat from a dead animal, there is____for that food resource.

Which of the following does NOT move continuously through ecosystems?

Which change in the ecosystem increases the carrying capacity for a particular species?

A ___ fossil is formed when sediments harden around the buried remains of an organism.

Cellular respiration is the process in which organisms break down food to release

As you move upward, from level to level, in an energy pyramid, available energy

Species can change over time and adapt to their environment.

These are homologous structures because their origins are different, but they look and act the same.

All the meerkats that live in a wildlife refuge make up which of the following?

How do most fossils form?

Which of the following is NOT part of a chromosome?

Phytoplankton are said to release how much of the oxygen in Earth’s atmosphere?

Which organisms use cellular respiration as a way to convert energy into usable form?

Amino acid sequences are determined by the _________ that makes up an organism’s genes.

The source of almost all energy on Earth is the climate.

The amount of oxygen in Earth’s atmosphere has been a constant for millions of years.

Each pair of chromosomes contains _________variants of a gene.

Which is most likely the first step in a basic food chain?

Which of the following eats only eucalyptus leaves?

After lava covers the land, primary succession occurs.