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Unit 5 Bio

Total questions: 50

Worksheet time: 53mins

Name
Class
Date
1.

What event within the food chain might lead to the graph shown below?

a)

A disease in the population of rabbits.

b)

A disease in the population of snakes.

c)

A disease in the population of hawks.

d)

A disease in the grass.

2.

What statements are true about this Energy Pyramid? Mark all that apply.

a)

Primary producers have most of the sun's energy.

b)

Primary producers have the least of the sun's energy.

c)

Energy is lost as heat at all levels.

d)

Primary consumers get more energy from the producers than secondary consumers.

3.
A producer?
a)
Eats other plants and animals
b)
Makes its own food
c)
Eats dead plants or animals
d)
Makes toys for kids
4.
A group of organisms of the same species living in the same area are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
5.

When humans burn fossil fuels, most of the carbon quickly enters the ___________ as carbon dioxide.

a)

Air

b)

Atmosphere

c)

Sun

d)

Water

6.
All of the living AND non-living things in an area that interact with each other are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
7.
Which are located at the very BOTTOM of an energy pyramid? 
a)
producers
b)
consumers - Level 1
c)
consumers - Level 2
d)
decomposers
8.
Organisms that hunt other organisms for food are called __________.
a)
predators
b)
prey
c)
producers
d)
heterotrophs
9.
A consumer?
a)
Makes its own food
b)
Eats dead plants and animals
c)
Eats plants and other animals for energy
d)
Buys toys for kids
10.

Photosynthesis is the process by which plants

a)

release water into the atmosphere

b)

turn sugars into energy.

c)

turn carbon dioxide into sugars.

d)

release carbon dioxide to the atmosphere.

11.

A/An _____ is everything that surrounds and affects a living thing.

a)

ecosystem

b)

environment

c)

population

d)

community

12.

What is the best choice for studying decomposers at work?

a)

a rotting log on the forest floor

b)

a live, healthy tree

c)

a robin that builds a nest in a tree

d)

cut wood at a lumber yard

13.
If two different species in an ecosystem both feed on the same type of beetles, then these two species are called ____________.
a)
Prey
b)
Competitors
c)
Mutualists
d)
Parasites
14.
Energy increases as you move up the food chain pyramid (from producer up through 3rd level consumer).
a)
True 
b)
False
15.

Which factor promotes competition between organisms in an ecosystem?

a)

cycling of minerals

b)

limited resources

c)

decomposition of organic matter

d)

presence of saprophytes

16.

How does the concentration of carbon dioxide in the atmosphere affect climate?

a)

As carbon dioxide concentrations increase, temperatures become more random.

b)

Carbon dioxide concentrations have no affect on climate.

c)

As carbon dioxide concentrations increase, temperatures increase.

d)

As carbon dioxide concentration increases, temperatures decrease.

17.
A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?
a)
predation
b)
mutualism
c)
cooperation
18.
Which would be the impact on producers and consumers if the decomposers in an ecosystem suddenly disappeared?
a)
There will be less nutrients available.
b)
There will be a decreased amount of oxygen.
c)
There will be an increase in atmospheric carbon.
d)
There will be an excess amount of energy available.
19.
Which best describes the relationship between decomposers and producers?
a)
Decomposers provide producers with water.
b)
Decomposers absorb nutrients produced in the soil.
c)
Producers release energy from the sun through decomposers.
d)
Producers absorb nutrients from decomposed material in the soil.
20.

What are the two main processes that add carbon to atmosphere?

a)

Respiration

b)

Combustion

c)

Decomposition

d)

Photosynthesis

21.

When a population is increasing.... (SELECT ALL THAT APPLY)

a)

Birth rate > Death rate

b)

Birth rate < Death rate

c)

Immigration > Emigration

d)

Immigration < Emigration

22.

Estimate the carrying capacity.

a)

100 deer

b)

80 deer

c)

60 deer

d)

40 deer

23.

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

24.

Which of the following is NOT a threat to biodiversity?

a)

Overhunting

b)

Invasive species

c)

Water purification

d)

Biomagnification

25.

All of the different species of living things in a given area is called:

a)

Population

b)

Community

c)

Ecosystem

d)

biome

26.

According to the chart, which year had the smallest population of coyotes?

a)

1990

b)

2000

c)

2007

d)

2009

27.

If the trend from 1990 to 2010 were to continue, how many sightings would we expect in 2020?

a)

20 or more

b)

between 10-15

c)

between 5-10

d)

less than 5

28.

What might be a positive affect of Kentucky issuing hunting licenses and deer tags?

a)

The state keeps track of the deer population each year

b)

Only a limited number of licenses are issued based on the population of the deer.

c)

Monies collected for licenses can be used on protecting deer and their habitat.

d)

All of the above

29.

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

30.

What is the original source of energy for this ecosystem?

a)

Plants

b)

Animals

c)

Air

d)

Sun

31.

Why might an invasive species be so successful in a certain nonnative habitats

a)

They have no natural predators.

b)

They are able to out-compete native species

c)

They are generalist that eat many different types of food.

d)

All of the above

32.

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.

33.

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

34.

Pythons are not native to the Florida Everglades but have been released there. They are thriving and crowding out native species. That is why they are considered a/n

a)

Keystone species

b)

Producer

c)

Invasive species

d)

Parasite

35.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

36.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
37.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
38.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
39.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

40.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
41.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
42.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

43.
Glucose is a ...
a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
44.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
45.
Some shrimp and crab live and capture food from within the tentacles of giant anemones. 
a)
Parasitism
b)
Commensalism
c)
Mutualism
46.
A tapeworm needs to eat food that is already digested, so it lives in the intestines of a dogfish shark and derives nourishment from the shark. As a result of the tape worm infestation, the shark is weakened and more vulnerable to disease and predation. 
a)
Parasitism
b)
Commensalism
c)
Mutualism
47.
The siboglinid tube worm, found at deep-sea hydrothermal vents and cold seeps,has no digestive tract. It relies on symbiotic bacteria that live in the tube worm’s tissues. The bacteria oxidize hydrogen sulfide or methane for the worm.
a)
Mutualism
b)
Commensalism
c)
Parasitism
48.

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

a)

mutualism

b)

commensalism

c)

competition

d)

predation

49.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
50.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism

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