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Ecology Study Terms

Total questions: 60

Worksheet time: 49mins

Name
Class
Date
1.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
autotroph
b)
producer
c)
heterotroph
d)
mutualist
2.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
autotroph
b)
producer
c)
heterotroph
d)
mutualist
3.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
4.
In this image, the grass is the ______________.
a)
Primary Consumer
b)
Secondary Consumer
c)
Heterotroph
d)
Producer
5.
The primary consumer in this food chain is the ____________.
a)
Frog
b)
Eagle
c)
Grasshopper
d)
Python
6.
Which of the animals in this food web is a secondary consumer?
a)
Hawk
b)
Lizard
c)
Mouse
d)
Snake
7.
Which animal is a tertiary consumer?
a)
Jackal
b)
Wild Cat
c)
Lion
d)
Owl
8.
The smallest part of the ecosystem is always the ____________.
a)
Primary Producers
b)
Secondary Consumers
c)
Primary Consumers
d)
Tertiary Consumers
9.
The largest part of an ecosystem is always the ________________.
a)
Primary Consumers
b)
Primary Producers
c)
Quarternary Consumers
d)
Secondary Consumers
10.

Organisms who are members of the same species in an ecosystem.

a)

Organism

b)

Population

c)

Organ

d)

Community

11.

Group of populations in an area.

a)

Organism

b)

Ecosystem

c)

Community

d)

Biosphere

12.

A biological community that includes various species and their physical environment (Biotic and Abiotic Factors).

a)

Organism

b)

Community

c)

Biosphere

d)

Ecosystem

13.
Andrea is on the grils cross country tream. She is heading out for a run when she comes across 20 Canadian geese.  What level of organization is this group of Canadian geese?
a)
organism
b)
population
c)
community
d)
biome
14.
Abby is walking to school with her best friend Jaylyn. They begin talking about everything they see including the ash trees, grass, weeds, ants, and people. They also notice how cold it is, how there are several large puffy clouds out, and how the sun is just starting to come up.  What level of organization are they discussing?
a)
community
b)
ecosystem
c)
biome
d)
biosphere
15.

The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae?

a)

waves

b)

sunlight

c)

bacteria

d)

rotifers, water fleas and tadpoles

16.

For the food chain shown, which of the following changes would have the most severe consequences?

a)

a drastic decrease in rainfall, causing a drought

b)

the poaching of predatory hawks by game hunters

c)

the introduction of a second predator that eats field mice

d)

a parasitic infestation that reduces the cricket population

17.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
18.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
19.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
20.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
21.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
22.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
23.
If there are 1000 Kcal of energy available in the producers, how much energy is available to the herbivores?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
24.

Producers obtain their energy by

a)

the process of hunting for prey

b)

the process of eating plants

c)

the process of photosynthesis to make their own food from sunlight

d)

the process of breaking down once living things

25.

What would happen within a few months after the formation of a volcanic island?

a)

pioneer species would begin to live there

b)

no pioneer species would grow

c)

trees and large plants would grow

d)

rich, organic soil would be present

26.

Which event could cause secondary succession?

a)

forest fire

b)

more seeds were spread

c)

a new volcanic island is formed

d)

more baby squirrels were born

27.
What are all biotic and abiotic things that interact in an area?
a)
Ecosystem
b)
Environment
c)
Plants
d)
Population
28.

Temperature, light, air, water, and soil are all _____ parts of the environment

a)

alive

b)

biotic

c)

abiotic

d)

living

29.

What does biodiversity mean?

a)

Only one species in an area.

b)

The different amount of species in an area

c)

All abiotic life

d)

Nitrogen fixation

30.

All consumers are

a)

autotrophs

b)

decomposers

c)

omnivores

d)

heterotrophs

31.

A living thing that feeds on the wastes and remains of plants and animals is called __?

a)

decomposer

b)

community

c)

consumer

d)

population

32.

Eating both plants and animals is a characteristic of

a)

herbivores

b)

decomposer

c)

carnivores

d)

omnivores

33.

Which list of organisms shows those with the greatest amount of energy to those with the least amount of energy?

a)

secondary consumer, primary consumer, producer

b)

producer, primary consumer, secondary consumer

c)

primary consumer, secondary consumer, producer

d)

producer, primary consumer, secondary consumer

34.

Animals that eat only plants are called____?

a)

omnivore

b)

decomposer

c)

carnivore

d)

herbivore

35.
What are groups of different populations living togther in the same place at the same time called?
a)
An organism
b)
A population
c)
A community
d)
A biosphere
36.

Select from the following, examples of a population.

a)

Herd of buffalo

b)

School of fish

c)

All the people living in a town

d)

The people, animals, and plants at Liberty Elementary School.

37.

​ ​ (a)   - Organisms that have similar features and can reproduce.

​ (b)   - A group of the same species that live in a certain area.

​ (c)   -  A combination of all the different populations that live and interact in the same environment

​ (d)   - All the living and non-living things that interact in one specific part of the environment.

Choose from the below words
Species
Population
Community
Ecosystem
38.
Organs and tissues that perform the same function is called _____________?
a)
cells
b)
tissues 
c)
organ system
d)
organs
39.
A group of tissues that perform a similar function is called_____. (Examples include the heart, lungs or stomach)
a)
cells
b)
tissues
c)
organs
d)
organ system
40.
What is the correct order of organization
a)
tissues-cells-organs-organ systems-organism
b)
cell-tissue-organs-organ systems-organism
c)
organism-cells-tissues-organ systems-organism
d)
tissues-cells-organs-organ sytems-organism
41.
TRUE or FALSE: An ecosystem contains only biotic factors.
a)
TRUE
b)
FALSE
42.
Which is the thin layer of the earth that supports life and also the largest level of ecological organization?
a)
A community
b)
The biosphere
c)
A population
d)
The biome
43.

The study of the interactions between organisms and their environment is:

a)

Ecology

b)

Microbiology

c)

Biology

d)

Evolution

44.

All living things in a given area, living and non-living.

a)

Ecosystem

b)

Biotic

c)

Community

d)

Species

45.

The role an organism plays in its environment is known as its

a)

ecosystem

b)

habitat

c)

niche

d)

biosphere

46.

The non-living parts of the environment such as rocks, air, temperature, sunlight, and water

a)

Abiotic

b)

Biotic

c)

Habitat

d)

Community

47.

A group of very similar organisms that can mate and reproduce offspring of the same type

a)

Community

b)

Population

c)

Species

d)

Niche

48.

The physical place where an organism lives is known as its

a)

niche

b)

habitat

c)

community

d)

biome

49.

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

a)

Communities make up species, which make up populations.

b)

Populations make up species, which make up communities.

c)

Species make up communities, which make up populations.

d)

Species make up populations, which make up communities.

50.

A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?

a)

Herbivore, decomposer

b)

Producer, heterotroph

c)

Carnivore, consumer

d)

Autotroph, herbivore

51.

In a food web, which type of organism receives energy from every other type:

a)

producer

b)

carnivore

c)

decomposer

d)

herbivore

52.

Carbon cycles through the biosphere in all of the following processes except:

a)

photosynthesis

b)

transpiration

c)

burning of fossil fuels

d)

decomposition of plants

53.

The repeated movement of water between Earth's surface and the atmosphere is called:

a)

water cycle

b)

condensation cycle

c)

precipitation cycle

d)

evaporation cycle

54.
What defines an organism that is not native to the area it lives in and has negative effects in some way?
a)
Invasive Species
b)
Biodiversity
c)
Food Chains
d)
Food Webs
55.
What do we call organisms that eat both plants and animals?
a)
carnivore
b)
herbivore
c)
omnivore
d)
autotrophs
56.
Which level of a trophic pyramid would have the fewest number of organisms?
a)
primary consumers
b)
producers
c)
tertiary consumers
d)
secondary consumers
57.
Which of the following would most likely be a carnivore with no natural predators?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
58.

A group of ecosystems sharing similar characteristics

a)

Population

b)

Community

c)

Biome

d)

Ecosystem

59.

A single living individual (part of a population)

a)

Biome

b)

Organism

c)

Community

d)

Critter

60.

This picture represents an....

a)

Biome

b)

Ecosystem

c)

Community

d)

Organism

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