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NGSS Post Test 7th Grade Life Science (4/29/2025)

Last updated 8 months ago
100 questions
1

Cells in a many-celled organism all ______.

1

Which of the following is NOT part of the cell theory?

1

Animals ____________________________________.

1

Plants ______________________________________.

1

What do all living things have in common?

1

In which organelle does cellular respiration occur in a consumer?

1

What is the outer boundary of all cells that controls what enters and leaves the cell?

1

What type of cells are plant and animal cells classified as?

1

Which part of the cell controls all activity that takes place in the cell?

1

Where does photosynthesis take place in plant cells?

1

Which of the following shows how a many-celled organism is organized from smallest to largest?

1

Which system pumps oxygen-rich blood and nutrients throughout the body?

1

Which system expands and contracts to move body parts, pump our heart, and helps us to swallow?

1

Which system is responsible for breaking down food and absorbing nutrients from the food?

1

Why might animals, such as a bison
, live in a group?

1

A flower like the Scarlet Pimpernel most likely has bright colored petals to______.

1

Cactus flowers that open only at night are usually white or yellow and have a strong scent because_______.

1

An animal like a tiger sets up a territory that covers several miles. He establishes this territory to use for____.

1

Which of the following would increase the chances of flowers reproducing?

1

What might be the affect of a drought (lack of rain) on the growth of a plant?

1

Wolves raised in areas with limited prey would most likely be _______ compared to wolves raised in an area with many prey.

1

A larger pond would likely have ______________ fish compared to a smaller pond.

1

Why would plants grow bigger near a river bank than in an open field?

1

In twins that are
genetically identical, why might differences exist between them?

1

What is the energy source required for photosynthesis to occur?

1

What is chlorophyll?

1

What gas is produced in photosynthesis?

1

What chemical energy is produced in photosynthesis?

1

When a person eats apples, peaches, carrots, and lettuce, they get energy. What compound is passed from plants to humans to give them energy?

1

In what part of the cell does respiration take place?

1

What gas is needed for respiration to take place?

1

What is the primary purpose of cellular respiration?

1

While Matt was outside in January when the temperature was 12°F, his body temperature stayed at 98.6°F. What process did his body use to maintain his body temperature?

1

A bird is nearly captured by a cat. How does the bird now know to stay away from the cat?

1

Which of the following shows how a dog adjusts from spring to summer?

1

Receptors in the muscles provide the brain with information about body position and movement. In this case the muscular system is working with the_____________.

1

Janet accidentally touched a hot pan on the stove and screamed.  What is the stimulus in this event?

1

A population of robins lives in a grove of trees in a park. Over the next several years some of the trees are cut down due to a disease that has moved into the area. The lack of nesting space for the robins is seen as a _________.

1

Polar bears are found all around the North Pole. The natural environment where any species lives is its _____.

1

The rabbit population in a forested area has been about the same for the last several years. A group of fox have recently migrated into the forest looking for a new water supply. What do you predict will happen to the rabbit population in the next few years?

1

Looking at the chart,
what might have happened that would cause the change in the grasshopper population from 2003 to 2004?

1

What relationship is shown between the amount of precipitation and number of fawns?

1

Sharksuckers attach themselves to sharks. They feed on the leftovers from the shark’s meals and do not hurt the shark. This relationship is an example of ______________.

1

Certain protozoans live in the intestines of termites. The termites eat wood, which the protozoans digest. They both benefit and depend on each other for survival. What type of relationship does this situation describe?

1

Some poisonous snakes have a heat-seeking system to help locate mammals like mice. The snake strikes and injects venom into the mouse. The snake might wait for the mouse to die before swallowing it. What type of relationship does this situation describe?

1

A vampire bat drinks the blood of horses.  The horses can become weak from loss of blood. This is an example of _____________.

1

When the main food source of two different species is the same, what would you expect to result?

1

Most energy used by living things can be traced back to the sun.

1

What answer best demonstrates the flow of energy on a food chain?

1

Where would a plant be placed on the energy pyramid?

1

Living things in the environment are ______ factors

1

Organisms that make their own food from sunlight are _____________.

1

If a disease killed most of the mice in an area, what would you expect to happen?

1

In 1993, the Midwest experienced large amounts of flooding. The floods caused the squirrel population to drastically decline in six states. Flooding would be a(n) ________________ factor.

1

An increase in the fox population would most likely do what to the rabbit population?

1

What would most likely happen if the water temperature of a lake increased ten degrees above what it had ever been before?

1

Trash flies out of a boat into the ocean. The plastic rings from a 6-pack of soda cans land in the ocean water. How does this affect birds that live in the ocean habitat?

1

A pond has a large amount of algae growing on the top. What should be considered before releasing algae
eating fish into the pond to fix the problem?

1

One insect eating bat was introduced to an area by a farmer having problems with insects eating the corn crop. What would be most important for the farmer to consider before bringing in more bats?

1

Which question should be considered in bringing a new predator into an area to reduce the mosquito
population?

1

Lumber companies in the past cut down all the trees and moved to the next area. Now many lumber companies participate in reforestation, planting new trees to replace those cut down. What impact does reforestation have on the environment?

1

There are several sources of land/soil degradation. All BUT __________ is a cause of soil or land degradation.

1

If an animal lived in an Arctic climate and a mutation caused their hair to grow thicker, it would be
considered __________.

1

A mutation in a gene is always harmful.

1

A mutation in DNA may mean that a different __________ is made.

1

If you are lactose intolerant and cannot digest milk products, it is the result of a mutated message in your ___________.

1

Instructions an organism’s body uses for making proteins come originally from _______.

1

Organisms that reproduce asexually require ________ parent organism(s).

1

When a part of a plant can be cut from the parent plant and grow into a genetically identical plant, it is an example of _____________ reproduction.

1

Budding, fission, and regeneration are examples of ______________ reproduction.

1

The offspring from asexual reproduction should look exactly like the parent.

1

Which of these is a characteristic of sexual reproduction?

1

Most organisms throughout Earth’s history have become extinct because ____
_____.

1

Most fossils are found in

1

Which is the most likely reason a particular type of fossil with many bones and teeth has only been found in deep layers of earth?

1

Fossils of a shellfish were found high on the top of a mountain. Which BEST explains how this is possible?

1

Fossil A is found in a layer of rock below Fossil B. Based on this information, which statement is correct?

1

Which of the following would you expect to find if you were to examine a hummingbird 2,000 years from now and compare them to hummingbirds that exist today?

1

What reasoning did Darwin use after observing that finches on different islands would be related despite having such different beaks?

1

Even though a man’s arm, cow’s leg, horse’s leg, whale’s flipper, and bird’s claw may appear to be quite different, upon closer examination ___________.

1

How can fossils BEST help scientists classify organisms?

1

Scientists discovered fossil evidence that giraffes' necks have gotten longer over time. What idea would support why this change was helpful?

1

A full grown chicken and turtle have few similarities, but looked very similar at early developmental stages. What study would support this reasoning?

1

What can examining these pictures of the early development of the
fish, salamander, tortoise, and chick tell us about these organisms?

1

Evolutionary biologists study embryos of different organisms in order to _____.

1

In 2001, scientists announced they had discovered a species of dinosaur called Albertaceratops nesmoi. How would scientists have determined that this species was related to other known species of dinosaur?

1

A common ancestor is evident when comparing ______________ of different species in the phylum Chordata, especially in the earliest stages of development.

1

Species that reproduce _______________________ would be expected to survive best.

1

During a storm, several butterfly-eating birds were blown to a distant island. The island, which previously had no birds, was filled with butterflies of all colors. One year later, all the butterflies are dark green and brown. Which would best explain the change in the butterfly population?

1

A highly biodiverse tropical rainforest started to become colder and drier, causing some populations to become extinct. Identify the organisms best suited to this new climate.

1

Which is NOT an example of human influence on tomato plant traits?

1

Farmers choose to cross a corn plant that produces many ears of corn with one in which the corn kernels develop very quickly. They hope this will increase their profits in the next year. What does this example show?

1

What does the picture of the squirrel, with trash wrapped around its neck and in its hands, tell us about human impact on evolution?

1

The Animal Functional Genomics Laboratory conducts genetic research involving farm animals. The results can be used to genetically modify useful species of animals. Why might people argue against this research?

1

A gene for disease resistance in fir trees is transferred to pine trees using modern DNA technology. How might this be economically helpful to tree farmers?

1

Hummingbirds were introduced to Fairy Park in 1980. The hummingbirds were attracted to the pink daisies. Using the table of Daisy Populations, what most likely explains the shift in the daisy population from 1970 to 2000?

1

Looking at the chart, what is the best explanation of why there
would be more insects found alive in a building after spraying the same insecticide repeatedly?


1

Every time the population of rabbits peaks, the population of foxes rises slightly. What would you expect to happen to the size of the rabbit population if a mutation occurred that allowed some of the rabbits to jump high into trees, avoiding foxes?

1

In order for natural selection to occur, Charles Darwin stated we must begin with a population of organisms that has genetic ___________.

1

Natural selection is best represented by which mathematical concept when variations lead to better adap
ted traits?