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Ecology Lab PracticalReview

Total questions: 74

Worksheet time: 2hrs 41mins

Name
Class
Date
1.
All members of one species in a certain area.
a)
Population
b)
Limiting Factors
c)
Immigration
d)
Birth Rate
2.
One way to measure the size of a population is in terms of ___________.
a)
Population
b)
Population Density
c)
Emmigration
d)
Carrying Capacity
3.
The largest number of organisms that the environment can support. 
a)
Carrying Capacity
b)
Limiting Factor
4.
Environmental factors that keep a population from increasing. 
a)
Carrying Capacity
b)
Limiting Factors
5.
Which is NOT an example of a limiting factor.
a)
Climate
b)
Available Food & Water
c)
Available Space & Shelter
d)
Species color
6.
What happens when an environment reaches its carrying capacity?
a)
Populations will decrease
b)
Resources such as food, water, and space will be unlimited
c)
Populations will increase
d)
Nothing, everything will stay the same.
7.

An organism which thrives by living off off and harming another organism is called a. . .

a)

Predator

b)

Prey

c)

Parasite

d)

Photosynthesis

8.

Which of the following is a BIOTIC limiting factor of a population?

a)

Predators

b)

Wild Fires

c)

Roads

d)

Floods

9.

What are TWO things that affect the carrying capacity of Sturgeon fish in a lake?

a)

Abundance of fly larva

b)

Competition by Walleye fish

c)

Temperature of the water

d)

Their long tongues

10.

The maximum number of individuals of a species that an ecosystem can sustain is called . . .

a)

A population

b)

The carrying capacity

c)

The abiotic factors

d)

The biotic factors

11.

All of the individuals of a species in a given area is called . . .

a)

A population

b)

The carrying capacity

c)

The abiotic factors

d)

The biotic factors

12.

Which of the following species are MOST LIKELY to be in competition?

a)

Bears and Raccoons

b)

Flies and Rabbits

c)

Lynx and Squirrels

d)

Tigers and Ferns

13.
Limiting factors are sometimes helpful because they can keep the population from getting too large.
a)
True
b)
False
14.
When there is a lack of resources such as food, water, sunlight, shelter, and space this is often called __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
15.
If the population of a certain predator increases, there is often _______ its prey
a)
a decrease the population of
b)
an increase of the population of 
c)
great news for its prey of
d)
no  impact found on
16.
If there is more food than usual in an ecosystem, then...
a)
Populations will stay the same
b)
Populations will decrease
c)
Populations will increase
17.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
18.
Any thing or organism that regulates the size of a population of another organism is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
factorization
d)
materialization of precipitation
19.
What would happen if the population of hawks suddenly increased? How would it affect the other organisms in the ecosystem?
a)
The snakes would decrease due to more hawks eating them
b)
All of the population of organisms would increase
c)
The biotic factors in the ecosystem would increase
d)
The hawks predators would decrease
20.
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
a)
Mutualism
b)
Symbiosis
c)
Commensalism
d)
Parasitism
21.
What will happen if all of the frogs in a population die?
a)
The frogs' predators will decrease and the frogs' prey will increase
b)
The frogs' predators will increase and the frogs' prey will decrease
c)
The frogs' predators will increase and they frogs' prey in increase.
d)
We better all pray because there isn't anymore frogs.
22.
Will competition increase/decrease the carrying capacity of an ecosystem for the animal in competition?
a)
Decrease
b)
Increase
23.

According to natural selection, organisms more suited to their environment are better able to

a)

Sleep

b)

Survive

c)

Perish

d)

Migrate

24.

The process of passing down favorable traits to one's offspring is called

a)

Artificial Selection

b)

Mutations

c)

Evolution

d)

Inheritance

25.
Why is the mouse population changing over time?
a)

The light mice can reproduce more successfully than the dark mice

b)

The hawks eat more dark mice than light mice because the dark mice taste better

c)

The hawks eat more light mice than dark mice because they can see the light mice more easily

d)

The hawks eat more dark mice than light mice because they can see the dark mice more easily

26.
Which organisms are most likely to survive?
a)

the best adapted

b)

the fastest

c)

the strongest

d)

the most domesticated (tamed)

27.
Where the better adapted organisms survive to pass traits along to offspring.
a)

Evolution

b)

Natural Selection

c)

Extinction

d)

Artifical Selection

28.

Structural adaptations include:

a)

color and shape

b)

body systems

c)

behavior and actions

29.

The ability to blend in with one's environment.

a)

Mimicry

b)

Camouflage

c)

Adaptation

30.

Sharks have sharp teeth representing a ______________ adaptation.

a)

behavioral

b)

structural

c)

functional

31.

Migrating habits of fish and birds are ______________ adaptations.

a)

Structural

b)

Behavioral

c)

Functional

32.

Polar bears thick fur to keep them warm is a _____________ adaptation.

a)

Behavioral

b)

Structural

c)

Functional

33.

Rabbits have large ears to hear and avoid danger would be a ___________ adaptation.

a)

Structural

b)

Behavioral

c)

Functional

34.

Skunk's ability to produce and spray defensive chemicals is ________ adaptation.

a)

Structural

b)

Behavioral

c)

Functional

35.

Which diagram shows the MOST dense object?

a)

left

b)

center

c)

right

36.

A block of aluminum occupies a volume of 15.0 mL and weighs 45.0 g. What is its density?

a)

3 g/mL

b)

0.3333 g/mL

c)

675 g/mL

d)

I have no idea

37.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
38.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
39.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
40.

If a a liquid has a density of 3 g/mL and a mass of 9 g. What is the volume? Use the density triangle to solve the problem

a)

24 mL

b)

18 mL

c)

3 mL

d)

12 mL

41.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3?
a)
13.3 g
b)
13.3 cm3
c)
.075 g
d)
1695 cm3
42.
What is the volume of the liquid in this graduated cylinder?
a)
19 mL 
b)
35 mL 
c)
24 mL 
d)
1.9 mL
43.
What is the volume of the liquid in this graduated cylinder?
a)
8.2 mL 
b)
8.02 mL 
c)
82 mL 
d)
9.8 mL
44.
What is the mass on this triple beam?
a)
200g
b)
44g
c)
244g
d)
4g
45.
What is the mass on this triple beam?
a)
272g
b)
702g
c)
202g
46.
A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?
a)
Juniper
b)
Pine
c)
Spruce
d)
Fir
47.
An illustration and a dichotomous key are given. What is the correct classification for this organism?
a)
Class Insecta
b)
Order Amblygygi
c)
Order Araneae
d)
Order Scorpiones
48.
Using this dichotomous key, identity the name of the circled fish.
a)
band-tail puffer
b)
spotted goat fish
c)
peacock flounder
d)
trumpet fish
49.
The scientific name for an organism is made from the:
a)
class and family name
b)
genus and species name
c)
domain and kingdom name
d)
kingdom and phylum name
50.
The 8 levels of classification, most broad to most specific.
a)
Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species
b)
Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order
c)
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
d)
Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus
51.
Which kingdom contains members who are prokaryotic?
a)
Archaebacteria and Eubacteria
b)
Archaebacteria and Protista
c)
Eubacteria and Animalia
d)
Eubacteria  and Fungi
52.

Mark all the organisms that are considered producers

a)
b)
c)
d)
e)
53.

Giraffes have long necks that help them reach leaves high up in trees. They get all the energy they need from plants such as this. What type of consumer are giraffes.

a)

carnivore

b)

omnivore

c)

herbivore

d)

decomposer

54.

Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put energy that stores in the plant back into the ground for other plants to use. What type of consumer are mushrooms?

a)

carnivore

b)

omnivore

c)

herbivore

d)

decomposer

55.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
56.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

a)

There would be a decrease in the small bird population.

b)

There would be a decrease in the grass/flowers population.

c)

There would be a decrease in the mice population.

d)

There would be an increase in the grass/flowers population.

57.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
58.

Click on the image to make it larger-- Choose all that apply: The hawk gets energy from...

a)

mouse

b)

rabbit

c)

wildflowers

d)

snake

59.

The fox in this food web would be considered a:

a)

Tertiary Consumer

b)

Producer

c)

Secondary Consumer

d)

Primary Consumer

60.

All energy on in a food chain or food web starts with what main energy source??

a)

Sun

b)

Water

c)

Food

61.

Which organism is the secondary consumer?

a)

phytoplankton

b)

krill

c)

fish

d)

leopard seal

62.

Which organism is the apex predator?

a)

phytoplankton

b)

krill

c)

fish

d)

leopard seal

63.

An organism that can make its own food through photsynthesis

a)

Producer

b)

Consumer

c)

Omnivore

d)

Decomposer

64.
An organism in a food web that feeds directly on the producer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Decomposer
d)
Carnivore
65.

An organism in a food web that eats other consumers to obtain energy.

a)

Producer

b)

Secondary

Consumer

c)

Prey

d)

Scavenger

66.

An organism in a food web that eats other consumers to obtain energy and is not eaten by another organism.

a)

Producer

b)

Top Consumer

c)

Prey

d)

Scavenger

67.

The consumer in a food web that will not be consumed by another animal.

a)

Producer

b)

Secondary Consumer

c)

Primary Consumer

d)

Tertiary- Top Consumer

68.

Predator population lags behind prey population because......

a)

Increase in predators leads to decrease in prey

b)

Increase in predators leads to increase in prey

c)

Increase in predators leads to decrease in producers

d)

Increase in producers leads to increase in prey

69.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
70.

an animal or person that eats only plants.

a)

herbivore

b)

omnivore

c)

carnivore

d)

producer

71.

Four students were asked to create a graph representing a typical predator-prey relationship. Which graph shows a situation in which the number of predators in a population depends on the number of prey?

a)

F

b)

G

c)

H

d)

J

72.

Tiny organisms called Daphnia live in lakes and ponds where they consume algae. A lake with a stable population of algae and Daphnia was contaminated by pollution, resulting in the death of many algae. Which graph shows the most likely trend in the Daphnia population in the lake shortly before and after the pollution event?

a)

A

b)

B

c)

C

d)

D

73.

Which of these human activities is most likely to cause the excessive growth of phytoplankton in the world's oceans?

a)

The use of chemical fertilizers that are carried by runoff into rivers

b)

The logging of old-growth forests, which results in erosion

c)

The spraying of chemical herbicides that reduce carbon diozide in the air

d)

The mining of fossil fuels, which requires diffing underground tunnels

74.

Which of the following statements account for the change in population seen between years 7 and 8?

a)

The birth rate of the pigeons increased.

b)

The emigration rate of the pigeons decreased.

c)

The death rate of the pigeons exceeded the birth rate.

d)

The neighborhood reached its carrying capacity for the pigeon population

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