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Bio Unit 5 Assessment V1

Total questions: 61

Worksheet time: 39mins

Name
Class
Date
1.
A group of organisms of the same species that live in the same area is called a(n)
a)
community
b)
population
c)
biome
d)
ecosystem
2.
The base of most marine ecosystems are producers known as
a)

ferns

b)

zooplankton

c)

phytoplankton

d)

fungi

3.
Chemosynthesis is the process in which organisms
a)

form carbohydrates using chemicals.

b)

get energy by eating other organisms.

c)

make chemicals that absorb sunlight.

d)

use energy from the sun to form carbohydrates.

4.
Studying a software representation of an ecosystem on a computer is an example of
a)

experimentation

b)

modeling

c)

surveying

d)

observation

5.
Nonliving factors of an environment are
a)
biotic
b)
abiotic
c)
bacteria
d)
plankton
6.
Which of the following is an example of a biotic factor in an ecosystem?
a)
sunlight
b)
stream
c)
tree
d)
rock
7.

Nutrients are recycled from dead animals and plants by

a)

carnivores

b)

herbivores

c)

chemosynthesis

d)

decomposers and detritivores

8.
A moose is considered to be a heterotroph because it
a)

gets energy by eating other species.

b)

makes its own food.

c)

forms carbohydrates using chemicals.

d)

uses sunlight for energy.

9.

The correct order for the levels of ecological organization in the biosphere from smallest to largest is:

a)

biome, population, ecosystem, biome, species

b)

ecosystem, population, community, biome, species

c)

species, population, community, ecosystem, biome

d)

species, population, ecosystem, community, biome

10.
The study of the complex system of interactions that sustain life on the planet is
a)
zoology.
b)
chemistry.
c)
ecology.
d)
economics.
11.
If the primary producers produce 5000 energy units, about how much of this energy is available to the secondary consumers?
a)
5 energy units
b)
50 energy units
c)
1000 energy units
d)
5000 energy units
e)
5,000,000 energy units
12.
The diagram is a pyramid of biomass for a meadow ecosystem. The triangular shape of the diagram is useful for explaining which relationship among the trophic levels in this ecosystem?
a)

The amount of living organic matter is equal at all trophic levels in this ecosystem.

b)

Third-level consumers in this ecosystem have the greatest amount of living organic matter.

c)

With each step to a higher trophic level, the amountorganic matter increases.

d)

Third-level consumers in this ecosystem provide living organic matter to producers and other consumers.

e)

organic matter decreases at each trophic level in this ecosystem.

13.

Nutrients move through the biosphere, hydrosphere, atmosphere and geosphere in

a)

biogeochemical cycles.

b)

water cycles.

c)

pyramids of energy.

d)

ecological pyramids.

14.
The total amount of living tissue at each trophic level in an ecosystem can be shown in a(n)
a)
pyramid of energy.
b)
pyramid of numbers.
c)
pyramid of biomass.
d)
biogeochemical cycle.
15.
Which of the following is NOT true about matter in the biosphere?
a)

Matter is transferred in one direction through the biosphere.

b)

Biogeochemical cycles transform and reuse elements.

c)

The total amount of matter decreases over time.

d)

Human activity affects the movement of matter.

16.
Which biogeochemical cycle does NOT include a major path in which the substance cycles through the atmosphere?
a)
water cycle
b)
nitrogen cycle
c)
carbon cycle
d)
phosphorous cycle
17.
To make nitrogen in the atmosphere avaiable for organisms, it must first be converted into
a)
ammonia
b)
water
c)
nitrite
d)
nitrate
18.

Legislation was introduced in 1987 to ban the use of compounds that were depleting the ozone layer. The graph below shows the levels of halogens in the atmosphere for several years after the legislation was passed. What conclusion can you draw from this graph?

a)

The size of the ozone layer decreased during this time period.

b)

The concentration of ozone in the upper atmosphere increased during this time period.

c)

The concentration of halogens in the atmosphere decreased during this time period.

d)

The size of Antarctica below the ozone layer decreased during this time period.

e)

The concentration of heavy metals in the atmosphere decreased during this time period.

19.
Fossil fuels are commonly used as an energ source for transportation vehicles. Burning fossil fuels has led to more carbon dioxide in the atmosphere and dissolved in seawater. Which of the following describes how burning fossil fuels is MOST LIKELY to impact marine organisms?
a)
Increased levels of carbon dioxide in seawater would increase the rate of photosynthesis in marine plants.
b)
Dissolved carbon dioxide in seawater would cause an increase in shellfish populations due to strengthened skeletons.
c)
Increased levels of carbon dioxide in seawater would cause ocean acidification and weaken corals.
d)
Dissolved carbon dioxide in seawater would cause invasive species to out-compete native species.
20.
Which of the following could be a solution to help reverse a loss of biodiversity?
a)
habitat fragmentation
b)
reducing the size of the ozone layer
c)
increased use of monocultures
d)
reforestation
e)
invasive species
21.
Identify the three main sources of greenhouse gas emissions.
a)
industry
b)
electricity and heat
c)
buildings
d)
transportation
e)
agriculture and forestry
22.

Based on the data in the graph which city has the lowest per capita ecological footprint

a)

Charlottestown

b)

Halifax

c)

Montreal

d)

Ottawa

23.

According to the graph, the increase in carbon dioxide concentration between 1970 and 1990 is:

a)

5 ppm

b)

30 ppm

c)

50 ppm

d)

340 ppm

24.

Which of the following is the most likely cause of the trend in the graph?

a)

A hole in the Ozone layer, and increased evaporation of water from the oceans.

b)

Melting Ice at the north pole, and at the south pole

c)

Increased energy from the sun, and variation in the earths orbit

d)

Burning fossil fuels and land use change

25.
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)
parasitism
26.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
27.

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

28.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
29.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

30.

An area with a particular combination of physical and biological environmental factors that affect which organisms can live within it

a)

habitat

b)

niche

c)

competition

d)

biome

31.

the variety of environmental conditions within a species can survive and reproduce

a)

habitat

b)

niche

c)

tolerance

d)

resource

32.

what an organism does "for a living"; an organism's "role" within an ecosystem

a)

habitat

b)

niche

c)

competition

d)

biome

33.

The phenomenon that no two species can occupy exactly the same niche in exactly the same habitat at exactly the same time

a)

niche

b)

habitat

c)

predator-prey relationships

d)

competitive exclusion principle

34.

These images represent which phenomenon?

a)

logistic growth

b)

competitive exclusion

c)

exponential growth

d)

predator prey relationships

35.

feeding on plants

a)

predator

b)

prey

c)

herbivory

d)

resourcing

36.

These images represent which phenomenon?

a)

logistic growth

b)

competitive exclusion

c)

exponential growth

d)

predator prey relationships

37.

A century ago, hunters nearly eliminated otters across much of their range. After that, kelp forests up and down the couch vanished. Without otters preying on sea urchins, urchin populations skyrocketed. Armies or urchins devoured kelp. Without kelp forests as habitats, fishes, seabirds, and many other species disappeared. In this community, otters function as

a)

symbiotic species

b)

mutualistic species

c)

commensalistic species

d)

keystone species

38.

What of the following is most likely to occur if an organism's environment is outside the organism's range of tolerance?

a)

growth of the organisms increases

b)

organisms fail to reproduce

c)

organisms produce more offspring to increase their chance of survival

d)

organisms develop mutualistic relationships

39.

What is the ultimate source of energy for most organisms?

a)

The Sun

b)

The Earth

c)

Plants

d)

Producers

40.

Which of the following correctly shows an energy pyramid?

a)

A

b)

B

c)

C

d)

D

41.

How much energy is transferred from one trophic level to the next in an energy pyramid?

a)

1%

b)

10%

c)

100%

d)

90%

42.

Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s _________, and the rest is eliminated as heat.

a)

reproduction

b)

body fat

c)

body tissue

d)

life processes

43.

Kilocalories (kCal) is a measure of energy. If there are 1000 kCal available for the producers in trophic level #1, how much energy is available for the secondary consumers trophic level #3? (Hint: use the Rule of 10s)

a)

10 kCal

b)

1 kCal

c)

100 kCal

d)

1000 kCal

44.

The diagram represents a model of a biomass pyramid. Which statement best describes what happens in this biomass pyramid?

a)

More organisms die at higher levels than at lower levels, resulting in less biomass at higher levels.

b)

Energy is lost to the environment at each level, so less biomass can be supported at each higher level.

c)

When organisms die at higher levels, their remains sink to lower levels, increasing the biomass of lower levels.

d)

Organisms decay at each level, and thus less biomass can be supported at higher levels

45.

The greatest amount of biomass would be found in the...

a)

Primary Consumers

b)

Producers

c)

Decomposers

d)

Tertiary Consumers

46.

What is happening to water at D in Figure 3–3?

a)

Water is falling to the ground as precipitation.

b)

Water is evaporating from the ocean.

c)

Water is being taken up by plants through transpiration.

d)

Water is seeping into the ground to become groundwater.

47.

Which part of Figure 3–3 shows transpiration?

a)

A on the left

b)

B on the left

c)

A on the right

d)

B on the right

48.
Carbon cycles through the biosphere in all of the following processes EXCEPT
a)
photosynthesis.
b)
transpiration.
c)
decomposition of plants and animals.
d)
burning of fossil fuels.
49.
Nitrogen fixation is carried out primarily by
a)
humans.
b)
plants.
c)
bacteria.
d)
consumers.
50.
Animals get the most of the nitrogen they need
a)
by consuming plants or other animals.
b)
by breathing in atmospheric nitrogen.
c)
directly from bacteria in the soil.
d)
from the process of denitrification.
51.
If a lake receives a large input of a limiting nutrient, which of these would happen first?
a)
An algal bloom occurs.
b)
Algae begin to die and decomposers take over.
c)
Nitrogen compounds are recycled.
d)
The concentration of oxygen drops below the necessary level.
52.
Which of the following is true about phosphorus?
a)
Phosphorus is found primarily in the atmosphere.
b)
Phosphorus is an important component of RNA and DNA.
c)
Phosphorus can be “fixed” by lightning.
d)
Phosphorus is released into the air when animals exhale carbon dioxide.
53.

Which step shows carbon passing through a geological process?

a)

Respiration and photosynthesis

b)

Deposition and Volcanic activity

c)

Feeding and decomposition

d)

Human Activity

54.

Ocean acidification harms organisms by

a)

converting carbonate to bicarbonate

b)

denaturing proteins

c)

converting bicarbonate to carbonate

d)

increasing photosynthesis

55.

Monoculture can damage the ecosystem because

a)

it is more efficient and profitable than sustainable agriculture

b)

it requires large amounts of artificial fertilizers

c)

the soil microbiome gets depleted

d)

it's ugly

56.

Algae blooms can be caused by

a)

too much nitrogen and phosphorous in the water

b)

excess artificial fertilizer in runoff

c)

overfishing

d)

nitrogen fixation

57.

What problem does this eco-bridge address?

a)

invasive species

b)

biomagnification

c)

smog

d)

habitat fragmentation

58.
Invasive species grow quickly due to the lack of predators, this leads to a decline or extinction of the native population. True or false? 
a)
false
b)
true
59.

What is ecological footprint?

a)

The spreading of urban areas into rural areas to accommodate an expanding population.

b)

The act of moving from rural to urban areas.

c)

The amount of land required (by one person or a population) for waste management, food and transport etc.

d)

The physical footprint left in the mud after heavy rain.

60.

What kinds of resources make up your ecological footprint?

a)

waste production

b)

water and energy use

c)

food and shelter

d)

clothing and transportation

e)

All of the above

61.

What is an anthrome?

a)

an ant hill

b)

a biome

c)

a human-altered biome

d)

shelter

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