L2

Question 1

EARTH’S LIFE SUPPORT SYSTEM

Answer 1

Atmosphere
Hydrosphere
Geosphere
Biosphere

Question 2

Thin spherical envelope of gasses surrounding the earth’s surface

Answer 2

atmosphere

Question 3

contains the air we breathe
• Nitrogen (78%), Oxygen (21%), CO2, water vapor, methane

Answer 3

troposphere

Question 4

contains the ozone layer & filter sun’s UV radiation (global sunscreen)

Answer 4

stratosphere

Question 5

Made up all of the water on or near earth’s surface (71% of the globe)

Answer 5

hydrosphere

Question 6

Earth’s intensely hot core, mantle, and crust

Answer 6

geosphere

Question 7

upper portion contains soil chemicals that organisms need (nutrients) and non-renewable fossil fuels (coal, oil, and natural gas)

Answer 7

crust

Question 8

Consists of the parts of the atmosphere, hydrosphere, and geosphere where life is found

Answer 8

biosphere

Question 9

ecological organization

Answer 9

Individual
Population
Community
Ecosystem
Biosphere

Question 10

science that focuses on how organisms interact with one another and with their nonliving environment of matter and energy

Answer 10

ecology

Question 11

Set of organisms within a defined area or volume that interact with one another and with their environment of nonliving matter and energy

Answer 11

ecosystem

Question 12

distance of a location north or south of the equator

Answer 12

latitude

Question 13

elavation; height of something from a point of reference (usually sea level)

Answer 13

altitude

Question 14

Include those biomes along coastlines and in shallow seas

Answer 14

estuaries

Question 15

where rivers enter a body of salt water
• Highly productive; habitat for fish
• Temperate regions

Answer 15

salt marshes

Question 16

Found along coastlines in tropical regions
Trees adapted to salt water
• roots stabilize coastline by holding sediments in place, creating habitat for fish and birds

Answer 16

mangrove swamp

Question 17

Set of organisms within a defined area or volume that interact with one another and with their environment of nonliving matter and energy

Answer 17

ecosystem

Question 18

The living organisms of an ecosystem are central to:

Answer 18

1. Energy flow
2. Population dynamics
3. Maintaining balance

Question 19

Classification of organisms according to what position, or trophic level occupy the chain

Answer 19

food chain

Question 20

feeding level depending on its source of nutrients

Answer 20

trophic level

Question 21

autotrophs (self-feeders) make the nutrients they need

Answer 21

producers

Question 22

solar energy to chemical energy (not always)

Answer 22

photosynthesis

Question 23

organisms that eat the producers

Answer 23

primary consumers

Question 24

plant-eating species

Answer 24

herbivores

Question 25

plant and animal eating species

Answer 25

omnivores

Question 26

organisms consuming primary consumers

Answer 26

secondary consumers

Question 27

eats the secondary consumers

Answer 27

tertiary consumers

Question 28

at the top of the food chain

Answer 28

apex predator

Question 29

consumers that release nutrients from the waste or remains of plants and animals and return those nutrients to the soil, water, or air

Answer 29

decomposers

Question 30

detritus feeders; feed on wastes or dead bodies

Answer 30

detritivores

Question 31

contains multiple food chain, or paths, that energy can take as it passes from one organism to another

Answer 31

food web

Question 32

Key to how ecosystems are built and how they work, allowing energy to move from one trophic level to another

Answer 32

energy flow

Question 33

types of ecosystem

Answer 33

terrestrial, aquatic, man-made

Question 34

emerging zoonotic diseases (ex. Ebola)

Answer 34

deforestation

Question 35

food insecurity (famine associated with drought)

Answer 35

grassland

Question 36

species that are adapted to fire are sometimes unpalatable

Answer 36

grazing

Question 37

high pollution • lifestyle diseases - non-communicable diseases • Cardiovascular diseases • Cancer • Diabetes • Chronic respiratory

Answer 37

urban areas

Question 38

• waterborne diseases (cholera, typhoid)

Answer 38

• Freshwater (Rivers and Lakes)

Question 39

• fishing • Food security

Answer 39

Marine (oceans, coastal areas)

Question 40

Mosquito-borne diseases (malaria, dengue)

Answer 40

wetlands and marshes

Question 41

pesticide exposure • antibiotic resistance in livestocks

Answer 41

agricultural ares

Question 42

medical waste management • Antibiotic-resistant bacteria

Answer 42

hospitals and healthcare systems