Study guide

Question 1

Energy pyramid

Answer 1

A model that shows the available amount of energy in each trophic layer in an ecosystem

Question 2

Food chain

Answer 2

A model that shows one set of feeding relationships among living things

Question 3

Food wed

Answer 3

A model that shows many different feeding relationships among living things in a given area

Question 4

Producer

Answer 4

An organism that makes its own food; an organism that does not consume other plants or animals

Question 5

Consumer

Answer 5

An organism the eats other living things to get energy; an organism that dose not produce its own food (related word: consume.

Question 6

Biome

Answer 6

A major ecological community such as grassland, tropical rainforests, or desert

Question 7

Ecology

Answer 7

The branch of biology that deals with the relation of organism to one another and to their physical surroundings

Question 8

Nitrogen cycle

Answer 8

A process in which nitrogen in the atmosphere enters the soil and becomes part of living organism then eventually returns to the atmosphere

Question 8

Water cycle

Answer 8

The continual movement of water between land, ocean, and the air through predictable physical processes

Question 10

Carbon cycle

Answer 10

A natural cycle in which carbon compound, mainly carbon dioxide, are incorporated into living tissues through photosynthesis are returned to the atmosphere by respiration, decay of dead organism, and the burning of fossil fuel

Question 11

Biotic factors

Answer 11

All of the living parts of an ecosystem

Question 12

Abiotic factor

Answer 12

All of the nonliving parts of an ecosystem

Question 13

Prey

Answer 13

An animal that is hunted and killed by another for food

Question 14

Predator

Answer 14

An animal that naturally preys on others.

Question 15

Succession

Answer 15

The sequence of communities that develop in a area

Question 15

Levels of organization

Answer 15

The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere

Question 16

Lad safety rules

Answer 16

Report all accidents, injuries, and breakage of glass or equipment to instructor immediately. Keep pathways clear by placing extra items on the shelves or under the work tables. Wear safety goggles to protect your eyes when heating substances, dissecting.

Question 18

Metric system

Answer 18

The decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass.

Question 19

Dependent variable

Answer 19

A variable whose value depends on that of another.

Question 20

Independent variable

Answer 20

A variable whose variation does not depend on that of another.

Question 21

Constant variable

Answer 21

Also called control Statistics a person, group, event. That is used as a constant and unchanging standard of comparison in scientific experimentation.

Question 22

Hypothesis

Answer 22

A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.