Ecosystems

Question 1

Energy pyramid

Answer 1

A model that shows the available amount of energy in each tropic layer in a ecosystem.

Question 2

Food web

Answer 2

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

Question 3

Decomposer

Answer 3

Organisms which carry out the process of decomposition by breaking down dead or decaying organisms.

Question 4

Food Chain

Answer 4

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

Question 5

Coniferous

Answer 5

Plants that produce reproductive organs called cones.

Question 6

Consumer

Answer 6

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

Question 7

Biome

Answer 7

A major ecological community such as grassland, tropical rain forest, or desert.

Question 8

Deciduous

Answer 8

(of a tree or shrub) shedding its leaves annually.

Question 9

Ecology

Answer 9

The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

Question 10

Cycle

Answer 10

the movement of a substance through different reservoirs or stages

Question 11

Nitrogen Cycle

Answer 11

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

Question 12

Biotic

Answer 12

The living things in an ecosystem are called biotic factors. Living things include plants, animals, bacteria, fungi and more. The non living parts of an ecosystem are called abiotic factors.

Question 13

Water Cycle

Answer 13

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

Question 14

Abiotic factor

Answer 14

a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it

Question 15

Producer

Answer 15

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

Question 16

Carbon Cycle

Answer 16

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 17

Predator

Answer 17

an animal that hunts and eats another animal

Question 18

Prey

Answer 18

an animal that is hunted and eaten by another animal

Question 19

Succession

Answer 19

the sequence of communities that develop in an area.

Question 20

Levels of Organization

Answer 20

Species, population, community, ecosystem, biome, biosphere.

Question 21

Lab Safety Rules

Answer 21

Report all accidents, injuries, and breakage of glass or equipment to the teacher immediately.
Keep pathways clear by placing extra items on the shelves or under the work tables.
Wear sensible clothing including footwear.

Question 22

Metric System

Answer 22

a system of measurement based on multiples of 10

Question 23

Dependent Variable

Answer 23

a factor, trait, or condition that is affected when another factor, trait or condition is changed in a scientific experiment

Question 24

Independent Variable

Answer 24

in an experiment that is a fair test; the variable that a scientist changes

Question 25

Constant Varible

Answer 25

A variable whose value cannot be changed once it has been assigned a value.

Question 26

Hypothesis

Answer 26

a testable explanation for a problem or phenomena