Benchmark Post Test

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Benchmark Post Test

Take as many times as you want before 9 am Monday.

Class Period

3rd

4th

6th

Admin only

Clear selection

Last name

FIrst Name

Email (not dpsnc.net)

1. Which of the following statements BEST describes a virus?

A. A virus only infects cells which are dead.

B. A virus needs a living host cell to reproduce.

C. A virus is always active and reproducing, whether inside or outside a host cell.

D. A virus needs a living cell's waste for fuel.

Clear selection

2.Salinity refers to the amount of salt that is dissolved in water. The higher the salinity of water, the greater its salt content. The image below shows the salinity of ocean water on Earth for water that is close to the surface.Based on the diagram, which of the following is true?

A. Dissolved salt causes ocean water to change color.

B. The salinity of Earth's oceans is the same across any given latitude.

Option 3

D. The salinity of Earth's oceans can vary based on location.

Clear selection

from NASA images

3. The fossil record shows scientists that

A. all species from Earth's history became extinct.

B. the diversity of life on Earth has changed over time.

C. modern species are the same as those from Earth's earliest history.

D. organism diversity has been the same throughout Earth's history.

Clear selection

4. A renewable resource is one that is continually produced, such as the wind and sunlight. Which of the following is a renewable resource?

A. iron ore

B. petroleum

C. diamonds

D. water

Clear selection

5 .Which of these is the BEST way to manage a natural resource?

A. planting trees as they are being cut down

B. dumping chemical wastes into nearby lakes and rivers

C. driving in a car as much as possible

D. always leaving the water running while brushing your teeth

Clear selection

6 .Earthquakes are sudden motions that occur along breaks in the crust called _______.

A. faults

B. volcanoes

C. cores

D. mantles

Clear selection

7 .Which of the following is a characteristic of a good index fossil?

A. The organism lived only during a short part of Earth's history.

B. The fossil closely resembles many other types of fossils.

C. The organism was restricted to only one location on Earth.

D. Only one specimen of the fossil is found in a given rock layer.

Clear selection

8 .When two populations of organisms are in competition, they

A. cannot both survive.

B. are trying to use the same resources.

C. always join together as a single population.

D. must be replaced by a third population.

Clear selection

9 .How do elements and compounds compare?

A. Elements are made of atoms, but compounds are not.

B. Compounds are made of atoms, but elements are not.

C. Compounds are made of only one type of atom; elements are made of two or more types of atom.

D. Elements are made of only one type of atom; compounds are made of two or more types of atom.

Clear selection

10 .When cells use chemical energy obtained from food, this is known as

A. digestion.

B. respiration.

C. mitosis.

D. photosynthesis.

Clear selection

11 .Energy pyramids can be used to show the amount of energy available to each trophic level.Which trophic level has the most energy available to it?

A. primary consumers

B. producers

C. secondary consumers

D. tertiary consumers

Clear selection

12. The chart below shows an early stage in the embryonic development of different animal species. Early Embryonic Stage of Eight Animal Species. Based on the chart, which pair of animals is most closely related?

A. rabbit and tortoise

B. fish and salamander

C. sheep and salamander

D. human and fish

Clear selection

Image for #12

13. The fossil record shows scientists that

A. all species from Earth's history became extinct.

B. the diversity of life on Earth has changed over time.

C. organism diversity has been the same throughout Earth's history.

D. modern species are the same as those from Earth's earliest history.

Clear selection

14 .Green plants get their food through

A. digestion.

B. photosynthesis.

C. respiration.

D. osmosis.

Clear selection

15 .A large population of a certain species of toad lives in the tropical region of South America. These toads feed on worms and insects. A disease-causing fungus species that thrives in hot climates also exists in the same ecosystem. Which of the following most likely causes the decrease in the population of the toad species in this ecosystem?

A. a decrease in air currents in the ecosystem

B. an increase in urbanization in the ecosystem

C. an increase in temperature in the ecosystem

D. a decrease in pressure in the ecosystem

Clear selection

16 .Earthquakes are sudden motions that occur along breaks in the crust called _______.

A. mantles

B. faults

C. cores

D. volcanoes

Clear selection

17 .An infectious disease is a disease that is caused by a pathogenic organism inside the human body. Which of the following can cause infectious disease in humans?I. a virusII. a genetic mutationIII. a fungusIV. a bacterium

A. IV only

B. I, III, and IV only

C. I and II only

D. I, II, III, and IV

Clear selection

18. What is the niche of a rabbit? Mark all that apply.

Primary consumer

Secondary consumer

Predator

Prey

19 .Which of these is an example of a chemical change?

A. clay being shaped on a pottery wheel

B. logs burning in a fireplace

C. papers going through a paper shredder

D. juice freezing into ice pops

Clear selection

20 .The peppered moth is found in two color variants, dark and light. Many years ago, dark peppered moths were rare. When they rested on pale birch trees, they were easily spotted by birds and preyed upon. At the same time, light peppered moths were plentiful because they were camouflaged on the pale birch trees and escaped predation by birds.After the Industrial Revolution, many birch trees got covered with soot and became dark in appearance. This darker color better camouflaged dark peppered moths. Thus, the numbers of dark peppered moths increased while the number of light peppered moths decreased. The table below shows the changes in the peppered moth population observed in a particular region. Based on this information, which of the following best explains the role of natural selection in increasing the population of dark peppered moths?

A. The soot introduced the dark color trait to the light peppered moths, and their offspring became dark peppered moths.

B. Camouflage helped in the survival of dark peppered moths on pale birch trees, and they passed on this trait to their offspring.

C. Camouflage helped in the survival of dark peppered moths on dark soot-covered birch trees, and they passed on this trait to their offspring.

D. The soot covered the light peppered moths, and their offspring became dark peppered moths.

Clear selection

Table for #20

21 .Which of the following statements best describes the water found on Earth?

A. Most of the water found on Earth is salt water.

B. Most of the water found on Earth is fresh water.

C. Most of the water found on Earth is frozen.

D. Most of the water found on Earth is groundwater.

Clear selection

22 .Farmer Joe raises milk cows. In order to increase efficiency, he chooses the cows that produce the most milk and only allows these cows to reproduce. This process is known as

A. Mendelian genetics.

B. recombinant technology.

C. genetic engineering.

D. selective breeding.

Clear selection

23. Which kind of fault (shown here) is caused by a divergent boundary?

Reverse

Strike-slip

Normal

Thrust

Clear selection

24 .Which of the following is a characteristic of a good index fossil?

A. The organism lived only during a short part of Earth's history.

B. The fossil closely resembles many other types of fossils.

C. Only one specimen of the fossil is found in a given rock layer.

D. The organism was restricted to only one location on Earth.

Clear selection

25 .Which of the following is true about Earth's freshwater, air, soil and trees?

A. Although these resources are renewable, their present benefits can be reduced if used carelessly.

B. Although these resources are renewable, they present very few benefits for humans.

C. Although these resources are nonrenewable, humans don't have to worry about conserving them.

D. These resources are nonrenewable, so humans must stop using them if they are to survive.

Clear selection

26 .The image below shows models that represent the reactants and products of a chemical reaction.Based on the image below, which of the following is true?

A. Mass was lost in this chemical reaction because the atoms in the reactants are smaller than the atoms in the products.

B. Mass was conserved in this chemical reaction because the same atoms are present in both the products and the reactants.

C. Mass could have either been gained or lost during this chemical reaction because atoms always change mass when they react.

D. Mass was gained in this chemical reaction because there are more atoms in the products than there were in the reactants.

Clear selection

Image for #26

27 .Steven fills a glass with tap water. The water in the glass looks clear and Steven cannot seen any solids floating in the water. He performs a water quality analysis to determine the concentration of certain chemicals in the water. The results of his analysis are shown in the table below. Since the water appears clear and no solids can be seen, how can the presence of these chemicals in the water be explained?