Ecosystems 1

Question 1

Organism

Answer 1

A living thing

Question 2

Habitat

Answer 2

A environment that provides the things a specific organism needs to live, grow, and reproduce

Question 3

Biotic factor

Answer 3

A living, or once living part of an organisms habitat

Question 4

Abiotic factor

Answer 4

A nonliving part of an organisms habitat

Question 5

Population

Answer 5

All the members of one species living in the same area

Question 6

Community

Answer 6

All the different populations that live together in a certain area

Question 7

Ecosystem

Answer 7

The community of organisms that live in a particular area, along with their nonliving environment

Question 8

Limiting factor

Answer 8

An environmental factor that causes a population to decrease in size

Question 9

Resources

Answer 9

Things an organism needs to survive

Question 10

Density

Answer 10

The number of individuals in an area of a specific size

Question 11

Producer

Answer 11

An organism that can make its own food

Question 12

Consumer

Answer 12

An organism that obtains energy by feeding on other organisms

Question 13

Decomposer

Answer 13

An organism that gets energy by breaking down biotic wastes and dead organisms and returns raw materials to the soil and water

Question 14

Food chain

Answer 14

A series of events in an ecosystem in which organisms transfer energy by eating and by being eaten

Question 15

Food web

Answer 15

The pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem

Question 16

Energy pyramid

Answer 16

A diagram that shows the amount of energy that moving from one feeding level to another in a food web

Question 17

Role

Answer 17

Something based on the way organisms obtain food and interact with other organisms

Question 18

Law of Conservation of Mass

Answer 18

The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change

Question 19

Law of Conservation of Energy

Answer 19

The rule that energy cannot be created or destroyed

Question 20

Evaporation

Answer 20

The process by which molecules at the surface of a liquid absorb enough energy to change to a gas

Question 21

Condensation

Answer 21

The change in state from a gas to a liquid

Question 22

Precipitation

Answer 22

Any form of water that falls from cloud and reaches earths surface as rain, snow, sleet, or hail

Question 23

System

Answer 23

A group of objects or procedures that carry out a task

Question 24

Components

Answer 24

Parts of a system