CH 2.1

Question 1

T/F- Ecosystems are complex assemblages of many interacting living and
nonliving components

Answer 1

True

Question 2

A specific portion of a biome consisting of the living and nonliving environmental components that interact are known as

Answer 2

Ecosystem

Question 3

The living components of an environment are known as

Answer 3

Biotic Factors

Question 4

The nonliving components of an environment are known as

Answer 4

Abiotic Factors

Question 5

The total area on Earth (air, land, or water) where living things are found is known as

Answer 5

Biosphere

Question 6

A portion of the biosphere characterized by a distinct climate and a particular assemblage of plants and animals adapted to it is known as

Answer 6

Biome

Question 7

All populations living and interacting in an area. They only represent the living portion of ecosystems. this is known as

Answer 7

Community

Question 8

A group of individuals of the same species living and interacting in the same region is known as

Answer 8

Population

Question 9

A single member of a population is known as

Answer 9

Individual

Question 10

What field of study focuses on how a species interrelates with the biotic and abiotic environment?

Answer 10

Ecology

Question 11

a group of plants or animals that have a high degree of similarity and can generally interbreed only among themselves is known as

Answer 11

Species

Question 12

What are some examples of biomes?

Answer 12

Desert
Tundra
Rainforest
Temperate (Boreal) Forest

Question 13

Ecosystems function through two fundamental processes. What are the two?

Answer 13

Matter Cycles and Energy Flows

Question 14

What are some examples of matter cycles?

Answer 14

Carbon Cycle
Nitrogen Cycle
Water Cycle

Question 15

Storage places for cycling nutrients (abiotic and biotic) are known as

Answer 15

Sinks

Question 16

T/F- Energy flow is known as the one way passage

Answer 16

True

Question 17

What environmental factors determine and makeup biomes?

Answer 17

Precipitation and Temperature

Question 18

T/F- Biomes are determined by climate and can be identified by the predominant vegetation of an area

Answer 18

True

Question 19

T/F- Earth is a closed system for matter, but not for energy

Answer 19

True

Question 20

The movement of life’s essential chemicals or nutrients through an ecosystem is known as

Answer 20

Matter cycles

Question 21

The one way passage of energy through an ecosystem is known as

Answer 21

Energy Flow

Question 22

The range, within upper and lower limits, of a limiting factor that allows a species to survive and reproduce is known as

Answer 22

Range of Tolerance

Question 23

What factors determine the distribution and size of populations?

Answer 23

Limiting Factors

Question 24

This factor is also known as the critical resource required for all species

Answer 24

Limiting Factor

Question 25

The chemical reaction performed by producers that uses the energy of the sun to convert carbon dioxide and water into sugar and oxygen

Answer 25

Photosynthesis

Question 26

An organism that converts solar energy to chemical energy via photosynthesis is known as

Answer 26

Producers

Question 27

An organism that obtains energy and nutrients by feeding on another organism is known as a

Answer 27

Consumer

Question 28

The process in which all organisms break down sugar to release its energy, using oxygen and giving off CO2 as a waste product is known as

Answer 28

Cellular respiration

Question 29

Movement of carbon through biotic and abiotic parts of an ecosystem via photosynthesis and culler respiration as well as in and out of other reservoirs such as oceans, soil, rock, and atmosphere is known as a

Answer 29

Carbon Cycle

Question 30

T/F-Carbon is needed to
build all the macromolecules
(proteins, lipids, carbohydrates, and
nucleic acids) necessary for life.

Answer 30

True

Question 31

T/F- Photosynthesis uses solar energy and CO2 to release oxygen, while cellular respiration uses oxygen to release CO2

Answer 31

True

Question 32

T/F- During cellular respiration, organisms break down sugar to release its energy

Answer 32

True

Question 33

When bacteria is converted into atmospheric
nitrogen (N2) into ammonia
(NH3), which is a form of
nitrogen that is biologically
available to plants is known as

Answer 33

Nitrogen Fixation

Question 34

T/F- Nitrogen is needed by all living things to make biological molecules such as protein and DNA, continuously moves in and out of organisms and the
atmosphere in a cycle dependent on a variety of bacteria.

Answer 34

True

Question 35

A continuous series of natural processes by which nitrogen passes from the air to the soil to organisms and then returns back to the air or soil is known as

Answer 35

Nitrogen Cycle

Question 36

The conversion of atmospheric nitrogen into a biologically usable form, carried out by a bacteria found in soil or via lighting is known as

Answer 36

Nitrogen Fixation

Question 37

The conversion of ammonia to nitrate is known as

Answer 37

Nitrification

Question 38

The conversion of nitrate to molecular nitrogen is known as

Answer 38

Denitrification

Question 39

T/F-Phosphorus moves slowly through the environment, depending on physical
and biological processes. Human impact has also unbalanced this cycle

Answer 39

True

Question 40

T/F- Phosphorus is
needed to produce ATP and
nucleic acids.

Answer 40

True

Question 41

A series of natural processes by which the nutrient phosphorus moves from rock to soil or water to living organisms and back to soil is known as

Answer 41

The Phosphorus Cycle

Question 42

T/F- Biosphere 2 is allowing us to look at the consequences of elevated atmospheric CO2 levels, the main contributor to climate change today

Answer 42

True

Question 43

T/F- The most valuable lesson Biosphere 2 has provided is that Earth is truly irreplaceable.

Answer 43

True