Semester finals (Science)

Question 1

Energy pyramid

Answer 1

Definition: a model that shows the available amount of energy in each trophic layer in an ecosystem.

Question 2

Food web

Answer 2

Definition: a model that shows many different feeding relationships among living things in a given area.

Question 3

Food chain

Answer 3

Definition: a model that shows one set of feeding relationships among living things.

Question 4

Producer

Answer 4

Definition: an organism that makes it’s own food; an organism that does not consume other plants or animals.

Question 5

Consumer

Answer 5

Definition: an organism that eats other living things to get energy; an organism that does not produce its own food.

Question 6

Biome

Answer 6

Definition: a major ecological community such as grassland, tropical rain forest, or desert.

Question 7

Ecology

Answer 7

Definition: the branch of biology that deals with the relationships of organisms to one another and to their physical surroundings.

Question 8

Nitrogen cycle

Answer 8

Definition: a process in which nitrogen in the atmosphere enters the soil and becomes living organisms then eventually returns to the atmosphere.

Question 9

Water cycle

Answer 9

Definition: the continual movement of water between the land, ocean, and the air through predictable physical processes.

Question 10

Carbon cycle

Answer 10

Definition: a natural cycle in which carbon compounds, mainly carbon dioxide, are incorporated into living tissue through photosynthesis and returned to the atmosphere by respiration, decay of dead organisms, and the burning of fossil fuels.

Question 11

Biotic factors

Answer 11

Definition: the living components in an ecosystem.

Question 12

Abiotic factors

Answer 12

Definition: a non-living chemical and physical part of the environment that affect living organisms and the function of ecosystems.

Question 13

Predator

Answer 13

Definition: an animal that hunts and eats other animals.

Question 14

Prey

Answer 14

Definition: an animal that is hunted and eaten by another animal.

Question 15

Succession

Answer 15

Definition: the sequence of communities that developed in an area.

Question 16

Levels of organization

Answer 16

Species=population=community+abiotic+

biotic factors=ecosystem=biome=biosphere

Question 17

Lab safety rules

Answer 17

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Question 18

Metric system

Answer 18

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Question 19

Dependent variable

Answer 19

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Question 20

Independent variable

Answer 20

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Question 21

Constant variable

Answer 21

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Question 22

Hypothesis

Answer 22

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Question 23

What would happen to the plants and animals in our area if the climate suddenly changed? Provide examples of plants and animals and their outcome after climate change.

Answer 23

(Short essay answer)

Question 24

K= kilo
H= hecto
D= deca
U= unit
D= deci
C= centi
M= milli

Answer 24

Kilo= 1000
Hecto= 100
Deca= 10
Unit= 1
Deci= 0.10
Centi= 0.01
Milli= 0.001