Chapter 3 biology

Question 1

Contains the combined portions of the planet in which all life exist

Answer 1

Biosphere

Question 2

A group of organisms so similar to each other that they can produce fertile offspring

Answer 2

Species

Question 3

Groups of individuals that belong to the same species and live in the same area

Answer 3

Populations

Question 4

Assemblages of diff pop. that live together in a defined area

Answer 4

Communities

Question 5

A collection of all the organisms that live in a particular place

Answer 5

Ecosystem

Question 6

A group of ecosystems that have the same climate and similar dominant communities

Answer 6

Biome

Question 7

Make their own food

Answer 7

Autotrophs and producers

Question 8

Plants make their own food by using the Suns energy

Answer 8

Photosynthesis

Question 9

How plants get their energy when they can’t get sunlight

Answer 9

Chemosynthesis

Question 10

Organisms that rely on other organisms for their energy end food supply

Answer 10

Heterotrophs/consumers

Question 11

Eat plants

Answer 11

Herbivores

Question 12

Eat animals

Answer 12

Carnivores

Question 13

Eat plants and animals

Answer 13

Omnivores

Question 14

Eat remains of plants and animals

Answer 14

Detritivores

Question 15

Break down organic matter

Answer 15

Decomposers

Question 16

Series of steps in which organisms transfer energy by eating and being eaten

Answer 16

Food chain

Question 17

Links all the food chains together

Answer 17

Food web

Question 18

Each step in a fc or fw

Answer 18

Tropic level

Question 19

Show relative amounts of energy or matter within each trophic level

Answer 19

Ecological pyramid

Question 20

Total amount of living tissue with a given trophic level

Answer 20

Biomass

Question 21

The scientific study of interactions among organisms and between organisms and their environment

Answer 21

Ecology

Question 22

The process by which matter changes from liquid to gas

Answer 22

Evaporation

Question 23

Loss of water from a plant through its leaves

Answer 23

Transpiration

Question 24

The chemical substance that an organism requires to live

Answer 24

Nutrient

Question 25

Process of converting nitrogen gas into ammonia

Answer 25

Nitrogen fixation

Question 26

Conversion of nitrates into nitrogen gas

Answer 26

Denitrification

Question 27

Rate at which organic matter is created by producers in an ecosystem

Answer 27

Primary productivity

Question 28

A single nutrient that either is scarce or cycles very slowly, limiting the growth as organisms and ecosystems

Answer 28

Limited nutrient

Question 29

An immediate increase in the amount of algae and other produces that result from a large input of limiting nutrient

Answer 29

Algal bloom