NAME ______DATE ______PERIOD ______

Use your ISN and textbook to help you answer the following questions.

MULTIPLE CHOICE: Circle the letter of the answer that is TRUE. Some questions could have more than one anwer.

Which of the following types of heterotrophs eat other animals?

A. omnivores

B. herbivores

C. carnivores

All of life on earth exists in a region known as ______

A. an ecosystem

B. a biome

C. the biosphere

D. ecology

Groups of different species that live together in a defined area make up a(n) ______.

A. population

B. community

C. ecosystem

D. biosphere

Heterotrophs are also called ______.

A. autotrophs

B. photosynthesizers

C. producers

D. consumers

Autotrophs can also be called ______.

A. producers

B. consumers

C. Detritivores

D. decomposers

Only about ______percent of the energy available within one trophic level of the energy pyramid is transferred to organisms at the next trophic level when they are eaten. (look in your textbook)

1% 5% 10% 50% 100%

TYPES OF HETEROTROPHS

Fill in the chart with the missing information

TYPE / How does it get its energy? / Examples
Decompers /
absorbs energy by breaking down organic matter / Fungi, Bacteria
OMNIVORE / Eats both plants and animals / Humans, bears, crows
Herbivores / Eat only plants / Cows, rabbits
Scavengers / feed on dead plant and animal remains
/ Earthworms, snails, mites, Crabs,
CARNIVORE / Eats other animals (meat) / Lion, Shark, Bear

PUT THE FOLLOWING IN ORDER FROM LEAST TO MOST COMPLEX

BIOSPHERE POPULATION ECOSYSTEM COMMUNITY INDIVIDUAL

ORGANISM

____Organism___→_Population____→ Community___ →

__Ecosystem___→ _Biosphere__

TELL HOW A FOOD CHAIN IS DIFFERENT FROM A FOOD WEB

FOOD CHAIN / FOOD WEB
Food chain is linear; shows one organism eating another / Food web shows multiple overlapping food chains

THINK ABOUT IT

Look at the food web below and answer the questions.

Name a producer in this food web
__Algae______

Name two primary consumers

1._tadpole______

2._Daphina______

Name two secondary consumers

1._Lizard______

2.Dragonfly______

Name a tertiary consumer

___Kockaburra______

THINK ABOUT IT:
What do you think will happen to the frog population in this community if all the centipedes were killed off by a disease?

A. it would increase

B. it would decrease

C. it wouldn’t change… frogs don’t eat centipedes

EXPLAIN YOUR ANSWER:
______Support your answer choice with information from the food web

MULTIPLE CHOICE Circle ALL that are true.
There may be more than one correct answer.

During which process do plants use carbon dioxide?

A. cellular respiration

B. photosynthesis

C. denitrification

D. transpiration

In the nitrogen cycle, bacteria that live in soil and on plant roots in a symbiotic relationship with legumes change nitrogen gas into a usable form in a process called ______.

A. transpiration

B. denitrification

C. nitrogen fixation

D. respiration

Carbon cycles through the biosphere in all of the following EXCEPT ______

A. photosynthesis

B. transpiration

C. burning fossil fuels

D. decay of dead plants and animals

All of the following processes are part of the water cycle except

A.  Transpiration

B.  Condensation

C.  Evaporation

D.  Respiration

* * * * * * * * * * * * * * *

Name the 3 types of SYMBIOSIS

TYPES OF SYMBIOSIS / DESCRIPTION
Commensalism / Relationship in which one organism benefits, but the other in neither helped nor harmed
Parasitism / Relationship in which one organism benefits and the other is harmed in some way
Mutualism / Relationship in which both organisms benefit

* * * * * * * * * * * * * * *

COMPARE AND CONTRAST

BIOTIC FACTOR / ABIOTIC FACTOR
WAY THEY ARE DIFFERENT / Living Factors / Non living factor
WAY THEY ARE ALIKE / Both factors are part of an ecosystem
NICHE / HABITAT
WAY THEY ARE DIFFERENT / Role/Job of an organism / Environment in which an organism lives
WAY THEY ARE ALIKE / Habitat is part of an organisms niche
TRANSPIRATION /
EVAPORATION
WAY THEY ARE
DIFFERENT / Water evaporation from living things / Changing a liquid to a gas
WAY THEY ARE ALIKE / Both are processes in the water cycle

* * * * * * * * * * * * * * *

NAME THE CYCLE DESCRIBED:

______carbon cycle______Cycle in which photosynthesis and cellular respiration participate

____water cycle______Cycle that involves transpiration

____Nitrogen cycle______Cycle which is dependent on bacteria for nitrogen fixation _transpiration/water cycle_____ Process by which water enters the atmosphere from the leaves of plants


______Carbon cycle______Cycle in which volcanic activity and burning fossil fuels plays a role.

HUMMINGBIRDS have long bills and feed on the nectar of flowers. / FLOWERS are pollinated as hummingbirds move blossom to blossom getting nectar.
WHAT’S THE TYPE OF SYMBIOSIS?
Mutualism
SNAPPING SHRIMP have poor
vision. They depend on their goby fish roommate to give the danger signal whenever predators approach. The goby fish guides the snapping back home if they wander too far. / GOBY FISH who don't have a place to hide are quickly eaten. They find a Snapping shrimp roommate who digs a hole for both of them to live in.
WHAT’S THE TYPE OF SYMBIOSIS?
mutualism
TICKS live and feed on other animals. They suck blood from these animals for food. / DOGS may pick up ticks from the outdoors. The ticks cause skin irritation on the dogs. The ticks also transmit diseases to the dog that they are carrying.
WHAT’S THE TYPE OF SYMBIOSIS?
predation
REMORA use suckers to attach temporarily to large marine animals such as sharks, manta rays, whales, turtles, or large fish / The SHARK provides free transportation,
protection, and dropped food and feces which the remora feeds on. The host is not injured.
WHAT’S THE TYPE OF SYMBIOSIS?
Commensalism
HERMIT CRABS find shells left by snails that have died and move into them as a new home. / Snails die and leave behind their shells.
WHAT’S THE TYPE OF SYMBIOSIS?
Commensalism
GALL INSECT lays their eggs in the leaves or branches of Oak trees causing a
lump to form. / OAK TREES provide shelter and food to the insect larvae, but are not harmed.
WHAT’S THE TYPE OF SYMBIOSIS?
Commensalism
SKUNKS often live in burrows that have
been dug and abandoned by armadillos. / ARMADILLOS dig holes for homes, but often abandon them
WHAT’S THE TYPE OF SYMBIOSIS?
commensalism

* * * * * * * * * * * * * * *

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