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Biology AB Post Test

Total questions: 75

Worksheet time: 43mins

Name
Class
Date
1.
What are greenhouse gases?
a)
gases that cause climate change
b)
gases that emit green smoke
c)
gases that are used to make green colored glass
2.
Visible light reaches Earth’s surface while infrared light is trapped as heat. Which characteristic of Earth’s atmosphere causes this to happen?
a)
the hole in the ozone
b)
the greenhouse effect
c)
atmospheric pressure
d)
the inversion layer
3.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide in the atmosphere
d)
higher levels of oxygen in the atmosphere
4.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
5.
Which of the following gases DOES NOT trap heat?
a)
carbon dioxide
b)
nitrogen
c)
water vapor
d)
methane
6.
Compared to other greenhouse gases, carbon dioxide is very effective in trapping heat near the surface of the Earth.
a)
true
b)
false
7.
Which of the following have been linked to climate change?  
a)
droughts
b)
flooding
c)
melting of polar ice caps
d)
all of the above
8.
Which is a primary energy source used by power plants to generate electricity?
a)
coal
b)
wood
c)
gasoline
d)
batteries
9.
Changes in temperature are expected to be greatest
a)
near the equator
b)
near the poles
c)
between the equator and the North Pole
d)
between the equator and the South Pole
10.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
11.
Worldwide, temperatures have been increasing for more than 100 years.  Is this evidence of global warming?
a)
yes
b)
no
12.
Which of the following is contributing to an increase in carbon dioxide in the atmosphere?
a)
deforestation
b)
photosynthesis
c)
oceans
d)
all of the above
13.
Things you can do to help decrease global warming include:
a)
Eat more ice cream.
b)
Keep your freezer door open.
c)
Keep your air conditioner on high.
d)
Turn off your lights when you’re not using them.
14.
Melting of glaciers and polar ice caps....
a)
will result in cooler temperatures in the Arctic
b)
will result in sea-levels rising
c)
Will have no effect on ecosystems
d)
None of the above
15.
What is the definition of weather?
a)
a period of abnormally dry weather that lasts at least 2 years
b)
the specific condition of the atmosphere at a particular place and time
c)
a complex community of organisms and the community's environment
d)
a release of toxic gas
16.
What is the average weather for a particular time and region called?
a)
drought
b)
weather
c)
emissions
d)
climate
17.
Carbon is stored in
a)
Trees and other living things
b)
Oceans
c)
underground in soil and fossil fuels
d)
All are correct
18.
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)
evaporation
b)
condensation
c)
the greenhouse effect
d)
radiation
19.
The second layer of the atmosphere up from Earth, where the ozone layer is that protects us from harmful UV rays, is the
a)
thermosphere
b)
stratosphere
c)
troposphere
d)
mesosphere
20.

The mortality rate of organisms following a type I survivorship curve is __________.

a)

fairly constant throughout life

b)

higher in post-reproductive years

c)

lower after the organisms become established

d)

unrelated to age

21.

Animals such as pandas are long lived, mature slowly, and generally produce fewer offspring during their life spans but place a greater investment in each. What term is applied to this type of reproductive strategy?

a)

K-strategy

b)

r-strategy

22.

Which contribute to a positive population growth?

a)

immigration

b)

positive birth rate

c)

emigration

d)

positive death rate

23.

Which of the following is NOT an outcome of high population density?

a)

mortality increase

b)

predators tend to ignore prey that is overabundant

c)

reduction in births

d)

decreased resource availability

24.

Which of the following describes the population of elephants in Kenya from 1973-1989?

a)

(immigration + births) – (emigration + deaths) = 0

b)

(immigration + births) – (emigration + deaths) = 1

c)

(immigration + births) – (emigration + deaths) < 0

d)

(immigration + births) – (emigration + deaths) > 0

25.

A population’s emigration in one month totaled 2 individuals. During the same period, immigration was 12 individuals. Natality (births) was 8, and mortality was 15 due to a parasite infection. What was the net effect on the population size?

a)

+5

b)

+3

c)

0

d)

-4

26.

What type of factor has an increasing impact as the population size increases?

a)

density-independent

b)

density-dependent

c)

cohort effect

d)

survivorship factor

27.

Which of the following are density dependent factors?

a)

competition for resources

b)

predation

c)

disease

d)

natural disasters

28.

Which of the following are examples of a density independent factors?

a)

forest fire

b)

seasonal cycles

c)

storms

d)

disease

29.

Factors like predation can have a positive benefit to the population of prey organisms because predators tend to keep prey populations below their ___________.

a)

carrying capacity

b)

sustainibility number

c)

exponential growth point

d)

competition level

30.

As a population of a species increases within a territory, which of the following most likely also increases?

a)

Immigration

b)

Food supply

c)

Carrying capacity

d)

Competition

31.

What type of growth model is shown in image A?

a)

Exponential

b)

Logistic

32.

What type of growth model is shown in image B?

a)

Exponential

b)

Logistic

33.

What point on the graph represents carrying capacity?

a)

a

b)

b

c)

c

d)

d

34.

At carrying capacity, a population __________.

a)

increases rapidly

b)

increases slowly

c)

decreases slowly

d)

is in dynamic equilibrium

35.

Which choice most closely approximates the deer population's carrying capacity based on the graph?

a)

100

b)

80

c)

60

d)

10

36.

Which mathematical model most closely describes the population growth curve shown in deer population graph from the previous question?

a)

logistic growth

b)

exponential growth

37.

Which of the following populations is most likely to go extinct?

a)

a very small population in an unstable environment

b)

a moderate-sized population of r strategists

c)

a large population with lots of genetic variability

d)

all would be equally likely to go extinct

38.

What is the the closest approximation of the size of the human population today?

a)

850 million

b)

7.5 billion

c)

20.8 billion

d)

1.7 trillion

39.

Which population growth model most closely describes the human population in the modern age?

a)

logistic growth

b)

exponential growth

c)

upward growth

d)

tumor growth

40.

Within the carbon cycle, anything that absorbs more carbon from the atmosphere than it releases.

a)

carbon sink

b)

carbon source

41.

Within the carbon cycle, anything that releases more carbon into the atmosphere than it absorbs.

a)

carbon sink

b)

carbon source

42.

Select all that apply.

Which of the following are carbon sources.

a)

fossil fuel combustion

b)

volcanic eruptions

c)

forests

d)

oceans

43.

Select all that apply.

Which of the following are carbon sinks.

a)

soil and rocks

b)

fossil fuels

c)

forests

d)

oceans

44.

Forests are carbon sinks because they remove carbon dioxide from the atmosphere through ____________.

a)

combustion

b)

respiration

c)

photosynthesis

d)

decomposition

45.

Human activities add greenhouse gases to the atmosphere, therefore we are carbon ________.

a)

sinks

b)

sources

46.

The total set of carbon emissions caused by an individual.

a)

carbon cycle

b)

carbon handprint

c)

carbon footprint

d)

carbon summary

47.

The main human activity that adds to an individual's carbon footprint.

a)

usage of alternative energies (wind, solar, etc)

b)

respiration and growth

c)

photosynthesis by plants

d)

usage of fossil fuels for energy

48.

Select all that apply.

You can help decrease your carbon footprint by...

a)

buying and eat locally-produced food

b)

lessening your amount of driving

c)

recycling

d)

decreasing your water and electricity usage

49.
Which symbols best describe mutualism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
50.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
51.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
52.
Which symbols best describe commensalism?
a)
+,+
b)
+,-
c)
+,0
d)
0,0
53.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
54.
The spider crabs live on the shallow ocean floor. The algae lives on the crabs. The algae helps the crabs blend in and the algae gets a good place to live.
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Mitosis
55.
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
56.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
57.
 Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower. What type of symbiosis is this?
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
58.
What is the study of the interactions among organisms and  between organisms and their environments called?
a)
Biology
b)
Ecology
c)
Astronomy
d)
Biosphere
59.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
60.
Which of these is an example of an autotroph?
a)
Sunflower
b)
Krill
c)
Leopard
d)
Hummingbird
61.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
62.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
63.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
64.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
65.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
66.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
67.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
68.
What is a trophic level?
a)
Each level represented within a food chain or web.
b)
Levels of ecosystems that the world is divided into.
c)
Different levels of nutrients present within an organism.
d)
The levels of sunlight an autotroph needs to survive. 
69.
An energy pyramid represents what?
a)
How much sunlight is available for the ecosystem to use. 
b)
How much energy a particular organism needs. 
c)
How much energy is needed to build a pyramid. 
d)
The amount of energy available to the next 'feeder' in a food web.
70.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
71.
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.
72.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
73.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
74.
The fox in this food web would be considered a:
a)
Tertiary Consumer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
75.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore

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