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Flow of energy in ecosystems

Total questions: 71

Worksheet time: 41mins

Name
Class
Date
1.

Relating to water; living in or near water or taking place in water.

a)

Aquatic

b)

Bernie the dolphin

c)

Savannah

d)

Artic

2.

The smallest particle of an element; made of electrons, protons, and neutrons

a)

Atom

b)

Dust

c)

Molecule

d)

H2O

3.

An organism that must consume other organisms for nutrients.

a)

Consumer

b)

Producer

c)

Parasite

d)

Decomposer

4.

Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion

a)

Decomposers

b)

Consumer

c)

Predator

d)

Producer

5.

A system comprising all the biotic and abiotic factors in an area and all the interactions among them

a)

Ecosystem

b)

Environment

c)

Tundra

d)

Environmental Interactions

6.

The ability of a system to do work; required for changes to happen within a system

a)

Energy

b)

Food Web

c)

Energy Transfer

d)

Competition

7.

Transfer of energy from the Sun through the different trophic levels of the biosphere

a)

Energy Transfer

b)

Photosynthesis

c)

Consumer

d)

Limited Resources

8.

Overlapping food chains with different pathways for the flow of food energy in an ecosystem

a)

Food Web

b)

Ecosystem

c)

Deciduous Forest

d)

Energy Transfer

9.

The movement of elements or molecules through a repeated sequence of events, such as the water cycle.

a)

Matter cycle

b)

Transfusion

c)

Food Chain

d)

Recycle

10.

Substances that provide nourishment essential for growth and the maintenance of life

a)

Nutrients

b)

Food

c)

Water

d)

Food Chain

11.

Organisms that transform energy from the Sun and use carbon dioxide and water to make food

a)

Producers

b)

Decomposers

c)

Photosynthesis

d)

Consumers

12.

Relating to the Earth or to land.

a)

Terrestrial

b)

Living

c)

Martian

d)

Mammals

13.

The position an organism occupies on the food web

a)

Trophic Level

b)

Consumer

c)

Apex Predator

d)

Food Chain

14.

Organism that obtains energy by eating animals

a)

Carnivore

b)

Omnivore

c)

Decomposer

d)

Herbivore

15.

Organism that obtains energy by eating both plants and animals

a)

Omnivore

b)

Andrissa

c)

Carnivore

d)

Herbivore

16.

Organism that obtains energy by eating only plants

a)

Herbivore

b)

Mrs. Wong

c)

Carnivore

d)

Omnivore

17.

Organisms that make their own food

a)

Producer

b)

Consumer

c)

Decomposer

18.

Organisms that obtain energy by feeding on other organisms

a)

Producer

b)

Consumer

c)

Decomposer

19.

Organisms that break down wastes and dead organisms and return the raw materials to the environment

a)

Producer

b)

Consumer

c)

Decomposer

20.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

21.

Consumers that eat only animals

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

22.

Consumers that eat both plants and animals

a)

Omnivores

b)

Carnivores

c)

Herbivores

d)

Scavengers

23.

Consumers that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

24.

A food _______ is a series of events in which one organism eats another and obtains energy.

a)

chain

b)

web

c)

pyramid

d)

plate

25.

A food _______ consists of many overlapping food ________.

a)

web, chains

b)

chain, webs

c)

pyramid, webs

d)

web, pyramids

26.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

27.

As you work your way up the energy pyramid, what happens to the energy?

a)

It increases

b)

It decreases

c)

It stays the same

d)

Nothing

28.

In the energy pyramid, what is the bottom level composed of?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

29.

Which group of organisms is missing from the food web above?

a)

Carnivore

b)

Herbivore

c)

Omnivore

d)

Decomposer

30.

Looking at the chart below what type of organism is the Alaskan brown bear?

a)

Carnivore

b)

Herbivore

c)

Omnivore

d)

Decomposer

31.

Which of the following has the largest population in the Indian River Lagoon system?

a)

Crab

b)

Egret

c)

Flounder

d)

Phytoplankton

32.

In the Indian River Lagoon System, many organisms compete for food. Which organism in the food web competes with the egrets for food?

a)

Clam worm

b)

Crab

c)

Flounder

d)

Heron

33.

Which of the following statements most accurately describes the energy transfer between the levels of the food pyramid in the Indian River Lagoon System?

a)

Energy travels up the pyramid

b)

Energy stays in the phytoplankton at the lowest level

c)

Energy is released in the environment only at the top level

d)

Energy moves from the flounder to both the clam and the egret

34.

What is the primary source of energy for the ecosystem pictured above?

a)

Grass and Green plants

b)

Hawks and Deer

c)

Tadpoles and Fish

d)

Sun

35.

Observe the food chain below. What would be the result of disease killing off most of the mouse population?

a)

All populations would be relatively unaffected

b)

The grasshoppers would become extinct

c)

The grasshopper population would decrease; the owl population would increase

d)

The grasshopper population would increase and the owl population would decrease

36.

In this food web, which of the following organisms eats the largest variety of different producers?

a)

Mouse

b)

Grasshopper

c)

Dragonfly

d)

Butterfly

37.
A student has set up an artificial ecosystem for a class project. This ecosystem has producers, first-level consumers, second-level consumers, and third-level consumers. By accident, a chemical enters the ecosystem and kills all of the first-level consumers. Which group(s) of organisms will most likely survive?
a)
Producers
b)
second-level consumers
c)
second-level and third-level consumers
d)
third-level consumers and producers
38.

Which type of interaction exists between shrimp and blue crabs in this food web?

a)

Blue crabs prey on shrimp.

b)

Shrimp compete with blue crabs for food.

c)

Shrimp help blue crabs filter polluted water.

d)

Shrimp decompose matter for blue crabs.

39.

Which is the producer on this food chain?

a)

Owl

b)

Snake

c)

Grass

d)

Grasshopper

40.

Which is the secondary consumer?

a)

Owl

b)

Grass

c)

Grasshopper

d)

Bluebird

41.

Which is the primary consumer on this food chain?

a)

Owl

b)

Grasshopper

c)

Grass

d)

Snake

42.

What is the tertiary consumer in this food chain?

a)

Snake

b)

Owl

c)

Bluebird

d)

Grasshopper

43.

Which is the Quaternary (top predator) in this food chain?

a)

Owl

b)

Grass

c)

Snake

d)

Bluebird

44.

Which is the decomposer in this food chain?

a)

Owl

b)

Grass

c)

Grasshopper

d)

Mushrooms

45.

Which organism depends on only producers for food?

a)

Whiptail

b)

Squirrel

c)

Jackrabbit

d)

Bobcat

46.

Which organism relies on other animals for food?

a)

Pacific tree frog

b)

Mule Deer

c)

Raven

d)

Douglas Squirrel

47.

Which is the producer on this food chain?

a)

Grass

b)

Snake

c)

Mouse

d)

Grasshopper

48.

Which is the secondary consumer?

a)

Hawk

b)

Snake

c)

Grasshopper

d)

Mouse

49.

Which is the primary consumer on this food chain?

a)

Hawk

b)

Grasshopper

c)

Grass

d)

Mushrooms

50.

What is the tertiary consumer in this food chain?

a)

Snake

b)

Hawk

c)

Bluebird

d)

Grasshopper

51.

Which is the Quaternary (top predator) in this food chain?

a)

Hawk

b)

Grass

c)

Snake

d)

Mouse

52.

Which is the decomposer in this food chain?

a)

Mushrooms

b)

Grass

c)

Grasshopper

d)

Hawk

53.

Which type of symbiosis involves both species benefitting? +/+

a)

Mutualism

b)

Commensalism

c)

Parasitism

54.

Which type of symbiosis involves one species benefitting while the other is harmed? +/-

a)

Mutualism

b)

Commensalism

c)

Parasitism

55.

Which type of symbiosis involves one species benefitting while the other is unaffected? +/0

a)

Mutualism

b)

Commensalism

c)

Parasitism

56.

6.The first species to populate an area after a disturbance is called:

a)

A pioneer species

b)

A pilgrim species

c)

A founder species

d)

A primary species

57.

Both the lion and the cheetah eat some of the same prey in this ecosystem. Two organisms going after the same resource is known as

a)

Mutualism

b)

Parasitism

c)

Competition

d)

Commensalism

58.

Coyote populations have been increasing in recent years. Which would not be a reason for their increase?

a)

More food is available

b)

Less competition from other predators

c)

Less available habitat to live in.

d)

Less threat of being hunted by humans

59.

If the populations of grasshoppers would decrease, what affect would that have on the population of lizards?

a)

Increase

b)

Stay the same

c)

Decrease

d)

Unable to determine

60.

If the population of rattlesnakes were to decrease, why would that help to increase the population of hawks?

a)

Rattlesnakes eat hawks

b)

Hawks eat rattlesnakes

c)

Rattlesnakes and hawks both eat kangaroo rats.

d)

It would not help the hawk population.

61.

Rats were introduced to Australia and the rat population exploded over several years. Which would not be a reason for their population growing?

a)

Large amounts of available food

b)

Increase in the number of predators.

c)

More water available

d)

Large habitats to live in

62.

The ability to recover from or adjust from or adjust easily to misfortune or change.

a)

Catastrophic

b)

Disruptive

c)

Population

d)

Resilient

63.

Characterized by constant change, activity, or progress.

a)

Dynamic

b)

Matter

c)

Disruptive

d)

Mass

64.

Population

a)

The ability of an organism, population, community, or ecosystem to persist in the face of stressful or changing conditions

b)

A group of organisms that are similar to one another and can mate to produce offspring

c)

Characterized by constant change, activity, or progress

d)

A group of interacting individuals of the same species located in the same area

65.

The attached picture is an example of what natural process?

a)

Ecological succession

b)

Evolution of species

c)

Environmental growth and development

d)

Species variation

66.

An algal bloom affects its environment in all of the following ways EXCEPT –

a)

It decreases the amount of oxygen in the water.

b)

It filters the water to make it healthier for wildlife.

c)

It blocks sunlight so plants cannot perform photosynthesis.

d)

It produces harmful toxins.

67.

The peppered moth (Biston betularia) has two forms, a white-bodied and a dark-bodied form. The table provided shows the percentage of each type in a moth population over several years.


(See Attached Table)


The data provided on the shift in population of the peppered moth could support a claim that this population is responding to a change in the environment. In order for this data to support that claim, what other data would be needed?

a)

Data showing a steady change in the color of trees in this habitat between 1965 and 1985.

b)

Data showing that eventually there were no more dark-bodied moths after 1985.

c)

Data showing that in the years after 1985 the trend reversed leading to more dark moths.

d)

Data showing that, in 1965, the two forms migrated from different habitats.

68.

Information on brown tree snakes is provided along with information on the island of Guam. Brown tree snakes were first brought to Guam in 1950.


(See Attached Diagram)


Which of the following would provide evidence that the change to this environment brought about by the introduction of the brown tree snake has had an effect on the populations of organisms that lived on Guam?

a)

Many of the military bases on Guam were closed in the 1980s.

b)

Several other species of snakes were known to live on Guam before 1950.

c)

The population of lizards on Guam in 1960 was very small.

d)

The longest brown tree snake ever found on Guam measured 3 meters in length.

69.

A physical disruption to an ecosystem occurred when a highway was built through a forest. Which of the following would provide evidence that the addition of a highway to this forest affected populations?

a)

The amount of water runoff from higher elevations increased after the highway was built.

b)

The trees that were not cut down during the construction of the highway continued to grow.

c)

There were fewer species of nesting birds living in the forest after the highway was built.

d)

A greater area of the forest floor was exposed to the sunlight after the highway was built.

70.

Bank swallows are birds that make their nests on the edges of rivers. Bank swallows can’t swim or breathe underwater. They feed on flying insects and, in the spring, lay four or five eggs. Which of the following observations would provide evidence that the population of bank swallows was affected by a change in the environment?

a)

The largest swallows catch and eat more insects than the smallest ones.

b)

Swallows that lay four eggs one year may lay five eggs the following year.

c)

Fewer swallows build nests along the river when the water level rises.

d)

Swallows share a food source with other animals that also eat insects.

71.

Trout is a fish that lays its eggs in cold fresh water but spends some of its life in the ocean. Trout eat smaller fish. The graph provided shows the population of trout in the state of Wisconsin between the years 1999 and 2014.


(See Attached Graph)


Which change to the ecosystem had the largest effect on the the population of trout in Wisconsin?

a)

A hard freeze of many of the lakes in Wisconsin in the winter of 2006

b)

The slow rise in lake temperatures in Wisconsin between 1999 and 2014

c)

The rise in population of smaller fish in Wisconsin lakes between 2010 and 2011

d)

A shift in ocean currents that occurred in 2000 and again in 2001