Biology CH 3 & 4 Review

Question 1

Estuaries are very productive ecosystems because they receive fresh nutrients from

Accepted Answer

rivers and oceans

Question 2

Organisms that get nutrients by breaking down dead and decaying matter are called

Accepted Answer

decomposers

Question 3

In a parasitic relationship

Accepted Answer

one is hurt and one benefits

Question 4

What is the difference between climate and weather?

Accepted Answer

Weather is short term and climate is long term

Question 5

The total amount of tissue of all the organisms in a food chain is called the

Accepted Answer

biomass

Question 6

what is the form of carbon stored in a tree?

Accepted Answer

Glucose

Question 7

what happens in condensation? (water cycle)

Accepted Answer

water changes from gas to liquid, like clouds forming

Question 8

Phosphorus cycle- we obtain phosphorus by_______

Accepted Answer

A and B

Question 9

90% of the energy gained from eating another organism is lost as ___ and __ is gained as biomass.

Accepted Answer

heat; 10%

Question 10

Which of the following is a carbon source?

Accepted Answer

Burning fossil fuels, Animals

Question 11

The algae at the beginning of the food chain shown are

Accepted Answer

producers

Question 12

Which of the following descriptions about the organization of an ecosystem is correct?

Accepted Answer

Species make up populations, which make up communities

Question 13

What is commensalism?

Accepted Answer

One benefits and the other is not harmed or helped.

Question 14

What are the major places where carbon is stored long term?

Accepted Answer

ocean, lithosphere, atmosphere, biosphere

Question 15

Estuaries have what type of water?

Accepted Answer

both

Question 16

Autotroph or heterotroph?

Accepted Answer

heterotroph

Question 17

What happens in the water cycle during precipitation?

Accepted Answer

Waterdrops join and become heavy, then fall as rain or snow.

Question 18

Phosphorus enters the phosphorus cycle through?

Accepted Answer

weathering of rocks and minerals

Question 19

The coastal ocean extends from the low-tide mark to the outer edge of the continental shelf.

Accepted Answer

True

Question 20

What is a habitat?

Accepted Answer

a place where animals and plants live

Question 21

What is a Niche?

Accepted Answer

An animals role in their environment

Question 22

An ecosystem is a location on Earth that includes

Accepted Answer

biotic and abiotic factors

Question 23

What is the original source of almost all the energy in most ecosystems?

Accepted Answer

sunlight

Question 24

If an ecosystem includes rabbits and birds that only eat berries, which will happen first if the berries increase?

Accepted Answer

the berry population will decrease

Question 25

What drives wind and ocean currents?

Accepted Answer

unequal distribution of heat across the globe

Question 26

What is a natural way of carbon being released

Accepted Answer

All of the above

Question 27

How can carbon be transferred between carbon sinks?

Accepted Answer

all of the above

Question 28

Intertidal zones are biomes exposed by tides and periodically submerged.

Accepted Answer

True

Question 29

Which of the following scenarios is an example of secondary succession?

Accepted Answer

abandoned farm field

Question 30

The earth climate zones are...

Accepted Answer

temperate, tropical and polar

Question 31

What is the greenhouse effect?

Accepted Answer

trapping of the sun's warmth in the atmosphere, keeping the earth warm.

Question 32

In the nitrogen cycle, nitrogen is "fixed" by ______________.

Accepted Answer

Lightning, Nitrogen fixing bacteria

Question 33

Nitrogen fixation is the process in the nitrogen cycle that...

Accepted Answer

Bacteria in the roots of plants turn N2 gas into usable form

Question 34

The aphotic zone:

Accepted Answer

Has no sunlight and no photosynthesis

Question 35

What is primary succession?

Accepted Answer

when an area previously devoid of life grows plants

Question 36

What is a model of the complex interactions among organisms in a community called

Accepted Answer

a food web

Question 37

What animals eat both producers and consumers?

Accepted Answer

omnivores

Question 38

What is the term for each step in the transfer of energy and matter within a food web?

Accepted Answer

trophic level

Question 39

What are limiting nutrients?

Accepted Answer

scarce elements that limit growth

Question 40

During evaporation, water cycles from the...

Accepted Answer

hydrosphere to that atmosphere

Question 41

Marine ecosystems

Accepted Answer

all of these answers are correct.

Question 42

True or False: The aphotic zone is home to chemosynthetic producers.

Accepted Answer

True

Question 43

What is a pioneer species?

Accepted Answer

The first biotic residents of an area

Question 44

How do plants and animals help to maintain a balance of carbon dioxide in the atmosphere?

Accepted Answer

cellular respiration and photosynthesis

Question 45

In the Water Cycle, transpiration is water...

Accepted Answer

Evaporating from plants

Question 46

More than 90% of the world's ocean are is considered open ocean.

Accepted Answer

True

Question 47

A bee's ________ is a field of flowers and pollinating is it's ______.

Accepted Answer

habitat, niche

Question 48

Which of the following processes does not add carbon to the atmosphere?

Accepted Answer

sedimentation/lithification

Question 49

What is a carbon sink/reservoir/store?

Accepted Answer

something that removes carbon and stores it long term

Question 50

In a mutualistic relationship?

Accepted Answer

Both species benefit

Question 51

What causes Earth's Climate Zones?

Accepted Answer

unequal distribution of solar energy

Question 52

Autotroph or heterotroph?

Accepted Answer

autotroph

Question 53

Freshwater ecosystems......

Accepted Answer

are flowing water or standing water like rivers, lakes, wetlands….

Question 54

All of the following are part of the water cycle except

Accepted Answer

eutrophication

Question 55

How is carbon related to fossil fuels?

Accepted Answer

Carbon is stored in fossil fuels from plant & animal remains

Question 56

What is a secondary succession?

Accepted Answer

when the disturbance is less intense, doesn't remove all the soil organisms

Question 57

Photic Zone

Accepted Answer

The upper layer of an aquatic ecosystem that receives sunlight

Question 58

Which of the following scenarios is primary succession?

Accepted Answer

Area near Mt. St. Helens after it erupted

Question 59

The combined portions of the Earth in which all living things exist is called the

Accepted Answer

biosphere

Question 60

What is a climax community?

Accepted Answer

a mature & balanced community with little change in species.

Question 61

The base of any energy or biomass pyramid should include

Accepted Answer

producers

Biology CH 3 & 4 Review

Questions 61

Biology CH 3 & 4 Review

Questions 61