Ecology Unit Review

Question 1

All organisms that live in a particular place together with their nonliving environment

Accepted Answer

ecosystem

Question 2

A _________ is a group of organisms so similar to one another they reproduce fertile offspring.

Accepted Answer

species

Question 3

Redevelopment of a community after a natural disaster has wiped out the living organisms..

Accepted Answer

secondary succession

Question 4

This growth occurs when population's growth slows/stops after a period of increased growth

Accepted Answer

logistic

Question 5

Another name for an autotroph is a ____________

Accepted Answer

producer

Question 6

Photosynthesis and cell respiration are main processes in the __________ cycle.

Accepted Answer

Carbon

Question 7

________ is the main energy source for life on Earth.

Accepted Answer

sun

Question 8

The blue stem grass and prairie cornflower are examples of ______________

Accepted Answer

producers

Question 9

The diagram below is an _________________ .

Accepted Answer

energy pyramid

Question 10

All renewable natural resources

Accepted Answer

Solar, Wind, Wave

Question 11

__________ are assemblages of different populations that live in a defined area

Accepted Answer

communities

Question 12

The largest number of individuals that a given environment can support is it's _______________

Accepted Answer

carrying capacity

Question 13

The ____________ is a part of Earth in which life exists including land, water, air.

Accepted Answer

biosphere

Question 14

In the food web below the hawk is an _____ because it eats both grasshoppers & other organisms

Accepted Answer

omnivore

Question 15

_____________ is the number of individuals per unit area

Accepted Answer

population density

Question 16

How do trees affect the carbon/oxygen cycle?

Accepted Answer

decrease carbon dioxide levels in the atmosphere, increase oxygen levels in the atmosphere

Question 17

___% of energy available within 1 trophic level is transferred to organisms at the next level

Accepted Answer

10

Question 18

Ocean zone that has enough sunlight to support plants and phytoplankton.

Accepted Answer

photic

Question 19

Organisms that consume other organisms for energy/ food are called _____________.

Accepted Answer

heterotroph

Question 20

The use of a natural resource that preserves the resource for future generations..

Accepted Answer

Sustainable Use

Question 21

Humans, bears, and pigs are considered to be _________ because they eat both plants & animals

Accepted Answer

omnivore

Question 22

_______ ________ are the living components of an ecosystem.

Accepted Answer

biotic factors

Question 23

A population that has about equal numbers of births and deaths will be

Accepted Answer

stable

Question 24

Which explains why some invasive species are a problem?

Accepted Answer

they prey on native species and cause them to decline

Question 25

What is the carrying capacity or the max individuals an environment can support of this pop. ?

Accepted Answer

1,500,000

Question 26

_____ % of energy is lost as ______ to the environment at each level of a food chain..

Accepted Answer

90, heat

Question 27

________ _________: physical, or nonliving factor that shapes an ecosystem (ex.temperature)

Accepted Answer

abiotic factors

Question 28

The moose and a wolf graph below shows an example of _________________ what relationship

Accepted Answer

predator prey

Question 29

Below is an example of a ____________ which eats other animals

Accepted Answer

carnivore

Question 30

Wolves being eliminated from the pop. due to disease caused a _______to the moose death rate

Accepted Answer

Decrease

Question 31

Kelp is an example of a ________ because they make their own food.

Accepted Answer

producer

Question 32

Unusual weather, natural disasters,certain human activities are examples of

Accepted Answer

density-independent factors

Question 33

Groups of individuals that belong to the same species & live in the same area are ________

Accepted Answer

populations

Question 34

If a predator was introduced into a population what would happen to the death rate of the prey?

Accepted Answer

Increase

Question 35

Plant species that are the first to colonize a new or damaged environment...

Accepted Answer

pioneer species

Question 36

Bacteria & fungi are examples of ________ they break down organic matter

Accepted Answer

decomposers

Question 37

The movement of individuals OUT of a population

Accepted Answer

emigration

Question 38

TRUE OR FALSE: A limiting factor is a factor that causes population growth to INCREASE

Accepted Answer

False

Question 39

Development of a community that begins in a lifeless area..

Accepted Answer

primary succession

Question 40

In the food web below what organism is the primary consumer?

Accepted Answer

insects

Question 41

These factors include competition, predation, parasitism, and disease

Accepted Answer

density-dependent

Question 42

Plants and bacteria are examples of _________________.

Accepted Answer

autotrophs

Question 43

Part of the water cycle involves the evaporation of water from leaves called..

Accepted Answer

transpiration

Question 44

This type of population growth occurs when resources are unlimited

Accepted Answer

exponential

Question 45

The image shown below is a _______________.

Accepted Answer

food chain

Question 46

An interaction in which one organism captures & feeds on another organism is called ________

Accepted Answer

predation

Question 47

The movement of individuals into a population is _____________

Accepted Answer

immigration

Question 48

What would happen to the prey population if the predator was eliminated?

Accepted Answer

Increase

Question 49

Which factors can affect population size?

Accepted Answer

all of the above

Question 50

Heterotrophs are also called _____ because they rely on other organisms for their food & energy

Accepted Answer

consumers

Ecology Unit Review

Questions 50

Ecology Unit Review

Questions 50