Chapter 3

Question 1

Area around earth where life exists

From 8km above the surface and 11km below

Answer 1

Biosphere

Question 2

The study of interactions between organisms and their environment

Answer 2

Ecology

Question 3

An individual living thing

A single member of a species

Answer 3

Organism

Question 4

A group of organisms that are similar, can breed, and produce fertile offspring in nature

Answer 4

Species

Question 5

All the members of a species that live in the same area

Answer 5

Population

Question 6

Community

Answer 6

All of the different populations that live in the same area

Question 7

Ecosystem

Answer 7

All the organisms(communities) that live in a given area and their physical environment

Question 8

Biome

Answer 8

A group of ecosystems with the same climate and similar communities

Question 9

Biotic factors

Answer 9

All the living parts of the environment

Question 10

Abiotic factors

Answer 10

Any non-living part of the environment

Question 11

What are observations?

Answer 11

They are usual the first steps in designing an experiment and models.

Question 12

Experimentation

Answer 12

Used to test the hypothesis

Question 13

Modeling

Answer 13

Are created to better understand events that are difficult to study directly

Question 14

What are models based on?

Answer 14

Data collected from observations and experimentation.

Question 15

How does energy flow in an ecosystem ?

Answer 15

Consuming each other

Question 16

How does energy flow THROUGH an ecosystem?

Answer 16

Sun into plants

Question 17

Organisms that capture energy from sunlight or chemicals and use that energy to produce food

Answer 17

Autotrophs(producers)

Question 18

Photosynthesis

Answer 18

Uses light energy to produce CHO

Question 19

Chemosynthesis

Answer 19

Using chemical energy to produce CHO

Question 20

Chemical energy is used to make what?

Answer 20

Glucose from carbon dioxide and sea water

Question 21

Get their energy from other organisms(autotrophs) by consuming them

Answer 21

Heterotrophs

Question 22

Obtain energy by only eating plants

Answer 22

Herbivores

Question 23

Obtain energy by killing and eating other animals

Answer 23

Carnivore

Question 24

Obtain energy by eating both plants and animals

Answer 24

Omnivore

Question 25

Animals that consume the carcasses of already dead animals

Answer 25

Scavengers

Question 26

Obtain energy by chemically the remains of dead and decaying plants and animals ( detritus )

Answer 26

Detritvoers

Question 27

*energy flows from the sun to the autotrophs, to the heterotrophs

Answer 27

Fun fact

Question 28

A series of steps by which organisms transfer energy through an ecosystem by eating and being eaten (what eats what)

Answer 28

Food chain

Question 29

Several food chains in an ecosystem combined

Answer 29

Food web

Question 30

The steps in a food chain or food web

Answer 30

Trophic level

Question 31

What makes up the first trophies level

Answer 31

A producer

Question 32

Diagrams that shows the amount of energy or matter at each tropic level

Answer 32

Ecological level

Question 33

The number of individual organisms at each trophic level

Answer 33

Numbers pyramid

Question 34

The total amount of living tissue at each trophic level(mass/unit area)

Answer 34

Biomass pyramid

Question 35

Amount of energy available at each trophic level

10% is transferred to the next

Answer 35

Energy pyramid

Question 36

What is photosynthesis (equation )

Answer 36

Carbon dioxide + water == glucose + oxygen

Question 37

What is chemosynthesis (equation )

Answer 37

Hydrogen sulfide + oxygen == chemical energy

Question 38

Photosynthesis element equation

Answer 38

NRG(light) + H2O + CO2 == O2 +CHO

Question 39

Cellular respiration elements equation

Answer 39

CHO + O2 == CO2 + H2O + NRG(light)