Quiz about NC Biology Unit Review

Question 1

Ocean ecosystems act as a carbon sink removing atmospheric carbon dioxide, which is dissolved in the seawater. Which biological process would then utilize this dissolved carbon dioxide?

Accepted Answer

chemosynthesis by oceanic phytoplankton

Answer

photosynthesis by oceanic fish

Answer

aerobic respiration by marine mammals

Question 2

Which best details the movement of energy through aerobic cellular respiration?

Accepted Answer

Heat energy is released as chemical potential energy is transferred from glucose molecules to ATP molecules.

Answer

Heat energy is absorbed as chemical potential energy is transferred from oxygen molecules to ATP molecules.

Answer

Heat energy is absorbed as chemical potential energy is transferred from ATP molecules to glucose molecules.

Question 3

Brenda ran a 5 km race. During the race, she began to breathe heavily, and some of her muscles began to burn. Which of these explains why Brenda felt a burning in her muscles during the race?

Accepted Answer

The cells did not have enough oxygen, so they used fermentation as a source of energy.

Answer

The cells did not have enough glucose, so they used fermentation as a source of energy.

Answer

The cells had too much glucose, so they used aerobic respiration as a source of energy.

Question 4

Which diagram shows the relationship between the reactants and products of photosynthesis and cellular respiration?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 5

Mark all of the following activities that would add carbon to the atmosphere.

Accepted Answer

a dead tree decomposing

Accepted Answer

a factory burning fossil fuels

Accepted Answer

a caterpillar undergoing respiration

Answer

a bush undergoing photosynthesis

Question 6

Mark all of the following activities that would remove carbon from the atmosphere.

Accepted Answer

a bush undergoing photosynthesis

Answer

a dead tree decomposing

Answer

a factory burning fossil fuels

Answer

a caterpillar undergoing respiration

Question 7

The inputs of cellular respiration are glucose and __________, and bonds in these molecules are broken.

Accepted Answer

Oxygen

Answer

Water

Answer

Glucose

Answer

Carbon Dioxide

Question 8

The outputs of cellular respiration are __________ and water, and new bonds are formed in these molecules.

Accepted Answer

carbon dioxide

Answer

glucose

Answer

oxygen

Question 9

The energy stored in one molecule of glucose leads to many molecules of __________.

Accepted Answer

ATP

Answer

Sunlight

Answer

Water

Answer

Oxygen

Question 10

Which description best fits with the term biomass?

Accepted Answer

the mass of the living and dead organisms in a given area.

Answer

the producer-to-consumer ratio in an ecosystem.

Answer

the mass of all living things on earth

Question 11

Which trophic level has the most energy in an ecosystem?

Accepted Answer

producers

Answer

carnivores

Answer

omnivores

Answer

tertiary consumers

Question 12

From which source do almost all producers obtain their energy?

Accepted Answer

sunlight

Answer

herbivores

Answer

decaying matter

Question 13

The function of the light-dependent reactions is to ____

Accepted Answer

capture and transfer energy

Answer

build ATP

Answer

form water molecules

Answer

release carbon dioxide

Question 14

Leopard seals eat only meat. What are leopard seals?

Accepted Answer

carnivores

Answer

herbivores

Answer

omnivores

Answer

producers

Question 15

Which of these is the site of the photosystems in the light-dependent reactions of photosynthesis?

Accepted Answer

thylakoid membrane

Answer

stroma

Answer

ATP synthase

Answer

mitochondrial matrix

Question 16

Which chemical equation best represents the process of photosynthesis?

Accepted Answer

6CO2+6H2O---> C6H12O6 + 6O2

Answer

C6H12O6 + 6O2---> 6CO2+6H2O

Answer

C6H12O6 + 6H2O ---> C6H12O6 + 6O2

Answer

6CO2 +O2 ---> C6H12O6 + 6O2 + H2O

Question 17

Which of the following would go at the TOP of the energy pyramid?

Accepted Answer

Mountain Lion

Answer

Leaves of a tree

Answer

Kentucky Grass

Answer

Deer (herbivore)

Question 18

Which process would bacteria living near a heat vent on the ocean floor use to build carbon-based molecules, such as sugars?

Accepted Answer

chemosynthesis

Answer

fermentation

Answer

cellular respiration

Question 19

The part of cellular respiration that needs oxygen takes place inside the ____.

Accepted Answer

mitochondria

Answer

nucleus

Answer

thylakoid

Answer

cytoplasm

Question 20

How would you best define a "population"?

Accepted Answer

All the organisms within a specific species living in an area

Answer

All living things in a specific area

Answer

All living animals within a specific area

Answer

All of the living and non-living things in a specific area

Question 21

Which is at the bottom of the food chain?

Accepted Answer

autotrophs

Answer

Detritivores

Answer

heterotrophs

Answer

carnivores

Question 22

On average, how much energy is lost between the various levels of a food chain?

Accepted Answer

10-20%

Answer

1-10%

Answer

20-30%

Answer

Energy is not lost; all energy stays in the food chain

Question 23

True of false: All organisms on earth are dependent upon other organisms.

Accepted Answer

True

Answer

False

Question 24

What is this called?

Accepted Answer

A food web

Answer

A food chain

Answer

A food pyramid

Answer

A productivity diagram

Question 25

A natural fire burns a live oak forest in central Florida to bare ground. Over the next 150 years, if the climate and landscape of the area remain the same, which of the following is most likely to occur?

Accepted Answer

The area will become a younger live oak forest.

Answer

The area will become a marshy wetland.

Answer

The area will remain bare ground.

Answer

The area will become a younger rainforest.

Question 26

Which of the following cause eutrophication in a lake?

Accepted Answer

excessive nutrients

Answer

toxic chemicals

Answer

polluted sediments

Answer

heavy metals

Question 27

Which statement best explains how introducing a new species to an area could cause the extinction of another species?

Accepted Answer

The new species could eat all of the food in the area.

Answer

The new species could attract predators.

Answer

The new species could attract prey animals.

Answer

The new species could provide more food sources.

Question 28

The drawing below shows the behavior of a flower bud in late winter and early spring. Which of the following explains why the flower bud opens in early spring?

Accepted Answer

It is opening because of warmer temperatures.

Answer

It is opening because there is less light in the spring.

Answer

It is opening because of cooler temperatures.

Answer

It is opening because of drier soil.

Question 29

The pictures below show how radish seedlings grow in the presence of gravity and light. Which of the following is correct about shoot of the radish seedlings?

Accepted Answer

It grows toward light and against the force of gravity.

Answer

It grows away from light and with the force of gravity.

Answer

It grows toward the force of gravity but is not affected by light.

Answer

It grows toward light but is not affected by the force of gravity.

Question 30

A natural fire burns a live oak forest in central Florida to bare ground. Over the next 150 years, if the climate and landscape of the area remain the same, which of the following is most likely to occur?

Accepted Answer

The area will become a younger live oak forest.

Answer

The area will become a marshy wetland.

Answer

The area will remain bare ground.

Answer

The area will become a younger rainforest.

Question 31

What would most likely occur over time if the burning and clearing of tropical rainforests stopped?

Accepted Answer

an increase in the amount of oxygen released into the atmosphere

Answer

a decrease in the biodiversity of species

Answer

an increase in the amount of atmospheric pollution produced

Answer

a decrease in the source of new medicines

Question 32

In the event of global warming,which would NOT negatively affect food production?

Accepted Answer

decreased UV radiation resulting from increased ozone

Answer

poorer soil in new crop-growing regions

Answer

increased insect populations

Answer

lack of irrigation water in some areas

Question 33

Which of the following cause eutrophication in a lake?

Accepted Answer

excessive nutrients

Answer

toxic chemicals

Answer

polluted sediments

Answer

heavy metals

Question 34

Which statement best explains how introducing a new species to an area could cause the extinction of another species?

Accepted Answer

The new species could eat all of the food in the area.

Answer

The new species could attract predators.

Answer

The new species could attract prey animals.

Answer

The new species could provide more food sources.

Question 35

The drawing below shows the behavior of a flower bud in late winter and early spring. Which of the following explains why the flower bud opens in early spring?

Accepted Answer

It is opening because of warmer temperatures.

Answer

It is opening because there is less light in the spring.

Answer

It is opening because of cooler temperatures.

Answer

It is opening because of drier soil.

Question 36

The pictures below show how radish seedlings grow in the presence of gravity and light. Which of the following is correct about shoot of the radish seedlings?

Accepted Answer

It grows toward light and against the force of gravity.

Answer

It grows away from light and with the force of gravity.

Answer

It grows toward the force of gravity but is not affected by light.

Answer

It grows toward light but is not affected by the force of gravity.

Question 37

There are only about 100 Florida panthers living in the wild. Which of the following is NOT a reason why the Florida panther has become endangered?

Accepted Answer

They cannot handle the changes in temperature due to global warming.

Answer

They require a large habitat in order to survive.

Answer

Much of their habitat has been destroyed.

Answer

They do not reproduce well in captive breeding programs.

Question 38

Dumping raw sewage into a river will reduce the amount of dissolved oxygen in the water. What effect could dumping raw sewage most likely have on a river ecosystem?

Accepted Answer

a decrease in aquatic animal populations

Answer

an increase in fish populations

Answer

a decrease in water temperature due to the energy transfer from osmosis

Answer

an increase in cellular respiration due to the rising level of phosphates in the water

Question 39

The loss of biodiversity could lead to which of the following?

Accepted Answer

extinction

Answer

niche generalization

Answer

genetic diversity

Answer

overpopulation

Question 40

Hunting endangered species is prohibited by the Endangered Species Act. What term is used to describe illegal hunting?

Accepted Answer

poaching

Answer

abiotic

Answer

extinction

Answer

mitigation

Question 41

The graph shows the projected trend of the human population. Which of the following trends would have begun around 1900?

Accepted Answer

deforestation and other types of environmental destruction

Answer

an increase in the number of species living on Earth

Answer

gradual cooling of the global climate

Answer

decreased use of fossil fuel

Question 42

An environmental change can make an ecosystem more stable by

Accepted Answer

increasing the biodiversity of the ecosystem.

Answer

decreasing the biodiversity of the ecosystem.

Answer

decreasing the amount of producers in the ecosystem.

Answer

increasing the amount of consumers in the ecosystem.

Question 43

As a result of the burning of fossil fuels and deforestation since the Industrial Revolution, the concentration of carbon dioxide in the atmosphere has been increasing. The marked increase in the concentration of atmospheric CO₂ over the last 150 years concerns scientists because of its link to

Accepted Answer

increased global temperature.

Answer

global fish kills.

Answer

decreased farming productivity.

Answer

population growth.

Question 44

Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, kudzu was planted along southern roadways to control soil erosion. Adding a foot of vine a day in the spring and summer, kudzu quickly grew out of control. Why can introducing a new species to an existing ecosystem often be a disaster?

Accepted Answer

The new species can harm native organisms and damage the ecosystem.

Answer

The new species can rapidly evolve into a dangerous subspecies that cannot be destroyed.

Answer

The new species can create excess nutrients in the soil that can damage native species.

Answer

The new species can eventually become extinct.

Question 45

The greenhouse effect, deforestation, and acid rain are a few major problems confronting people in the twenty-first century. These problems indicate which of the following is needed in human societies?

Accepted Answer

cooperation between nations to reduce pollution

Answer

the development of auto industries in developing nations

Answer

a reduction in reforesting efforts in certain regions

Answer

an increase in the worldwide production of oil

Question 46

What invasive vine species has spread throughout the South?

Accepted Answer

kudzu

Answer

dandelion

Answer

zebra mussel

Answer

gypsy moth

Question 47

What is the only effective way to protect groundwater?

Accepted Answer

prevent contamination

Answer

use monitoring wells

Answer

cover all wells carefully

Answer

treat all water from underground sources

Question 48

English ivy is a plant that has the ability to grab onto objects and grow upward to get sunlight. This ivy can also be found growing flat along the ground. What causes the variation in the ivy growth?

Accepted Answer

The ivy grows according to its environment, and ivy that grows upward has things nearby to climb, while ivy that grows on the ground does not.

Answer

The ivy grows according to how its parents grew, and ivy that grows upward must be a different species than ivy that grows along the ground.

Answer

The ivy grows where it will receive the least amount of sunlight for photosynthesis.

Answer

The ivy grows where it will be able to blend into its environment to avoid predation.

Question 49

The pictures below show a plant called a Venus flytrap catching a worm. What causes the Venus flytrap to close so it can catch a worm?

Accepted Answer

touch

Answer

gravity

Answer

heat

Answer

light

Question 50

The loss of biodiversity could lead to which of the following?

Accepted Answer

extinction

Answer

niche generalization

Answer

genetic diversity

Answer

overpopulation

Question 51

The graph shows the projected trend of the human population. Which of the following trends would have begun around 1900?

Accepted Answer

deforestation and other types of environmental destruction

Answer

an increase in the number of species living on Earth

Answer

gradual cooling of the global climate

Answer

decreased use of fossil fuel

Question 52

If a scientist in New Zealand was studying how a group of herbivores interacted with a group of omnivores, and all of their abiotic surroundings, what level of ecology would she be studying?

Accepted Answer

Ecosystem

Answer

Community

Answer

Population

Answer

Species

Answer

Biome

Question 53

Which of the following can be both primary and secondary consumers?

Accepted Answer

omnivores

Answer

detritivores

Answer

herbivores

Answer

carnivores

Question 54

Chemosynthesis is the process in which organisms

Accepted Answer

form carbohydrates using chemicals.

Answer

get energy by eating other organisms.

Answer

use energy from the sun to form carbohydrates.

Answer

make chemicals that absorb sunlight.

Question 55

A model that shows a single sequence of feeding relationships is called a

Accepted Answer

food chain

Answer

food web

Answer

feeding chain

Answer

trophic level

Question 56

Decomposers are important to ecosystems because they

Accepted Answer

return vital nutrients back to the environment.

Answer

can act as omnivores.

Answer

capture energy from the sun.

Answer

are producers.

Question 57

Giant pandas eat bamboo almost exclusively. For this reason, giant pandas are an example of a(n)

Accepted Answer

specialist

Answer

carnivore

Answer

omnivore

Answer

generalist

Question 58

The temperature, rainfall, and soil/sand in an ecosystem would all qualify as

Accepted Answer

abiotic factors

Answer

a whole ecosystem

Answer

biotic factors

Answer

living things

Question 59

A group of gray wolves living in Minnesota is an example of

Accepted Answer

a population

Answer

a community

Answer

a biome

Answer

an ecosystem

Question 60

Which phrase best describes biodiversity?

Accepted Answer

the number of species in an ecosystem

Answer

the amount of available energy in an ecosystem

Answer

the number of individuals in an ecosystem

Answer

the amount of biomass in an ecosystem

Question 61

An ecosystem consists of

Accepted Answer

all of the above.

Answer

the soil, water and weather.

Answer

a community of organisms.

Answer

energy.

Question 62

A group of organisms of different species living together in a particular place is called a

A. community. C. biome.

B. population. D. habitat.

Accepted Answer

community

Answer

biome

Answer

population

Answer

habitat

Question 63

What is the number one cause of species decline and extinction?

Accepted Answer

Loss of habitat

Answer

Over hunting

Answer

Lack of sunlight

Answer

Carbon sequestration

Question 64

The use of pesticides and clear cutting a forest are examples of what type of environmental stress?

Accepted Answer

Sudden, artificial (Human) stressors

Answer

Sudden, natural stressors

Answer

Gradual, artificial (Human) stressors

Answer

Gradual, natural stressors

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