Chapter 2

Question 1

a network of interdependent components and processes

Answer 1

System

Question 2

a complex assemblage of animals, plants and their environment, through which materials and energy move

Answer 2

Ecosystem

Question 3

system where elements can enter and leave

Answer 3

Open System

Question 4

System where elements don’t enter or leave

Answer 4

Closed System

Question 5

energy and matter that flows through a system

Answer 5

throughput

Question 6

Substances that cannot be broken down into simpler forms by ordinary chemical reactions

Answer 6

Elements

Question 7

smallest unit of elements

Answer 7

Atom

Question 8

Fundamental unit of life

Answer 8

Cells

Question 9

use energy, air, and water to make carbs

Answer 9

Primary Producer

Question 10

uses light energy

Answer 10

Photosynthesis

Question 11

inorganic chemical compounds

Answer 11

Chemosynthesis

Question 12

Function: immediate Energy (cellular respiration)

Answer 12

Carbohydrates

Question 13

Function: Long term energy storage (Cell Membranes)

Answer 13

Lipids

Question 14

Function: Cell Membrane, lots of others

Answer 14

Proteins

Question 15

Function: Genetic Information, DNA, RNA

Answer 15

Nucleic Acids

Question 16

all organisms that are genetically similar enough to breed and produce live, fertile offspring

Answer 16

Species

Question 17

all the members of a species living in a given area at the same time

Answer 17

Population

Question 18

all the populations of organisms living in a particular area

Answer 18

Community

Question 19

a biological community and its physical environment

Answer 19

Ecosystem

Question 20

organisms feeding status

Answer 20

Trophic Levels

Question 21

Cleans up dead carcasses

Answer 21

Scavenger

Question 22

Consumes Litter, debris, and dung

Answer 22

Detritivores

Question 23

final breakdown and recycling of organic materials

Answer 23

Decomposers

Question 24

Water leaving Plants

Answer 24

Transpiration

Question 25

take in CO2 - photosynthesis turns it into sugars - sugars stored in plant. - plant dies and decaying material releases CO2 into atmosphere - OR plan is buried - fossil fuel - dug up and burned - Released CO2

Answer 25

The Carbon Cycle

Question 26

Plants get N form Bacteria that lives in the roots - build proteins - same recycling process as Carbon Cycle

Answer 26

Nitrogen Cycle

Question 27

Released from Rocks - Plants take it up - organic molecules - cycles through ecosystem

Answer 27

Phosphorous Cycle

Question 28

_____ is released by: - weathering of rocks - emissions from deep seafloor vents - volcanic eruptions - releasing form bacteria - burning fossil fuels * Acidic Rain*

Answer 28

Sulfur