Final

Question 1

Rivet Popper

Answer 1

Each species is important in its own small way. Lose one the ecosystem weakens but does not fail

Question 2

Redundancy

Answer 2

Most species are redundant and only a few are critical to the survival of the ecosystem

Question 3

Extinction

Answer 3

Loss of a species from biota cannot produce direct descendants

Question 4

Extirpation

Answer 4

Loss of species from significant portion of range

Question 5

Background extinction

Answer 5

Continuous low level rate of extinction happens over a long period of time

Question 6

Mass Extinction

Answer 6

Large scale of extinction over a short period of time

Ex. Climate change, meteorite

Question 7

Largest mass extinction contributors

Answer 7

Humans

Question 8

Ocean

Answer 8

Largest most diverse ecosystems. Large amounts of CO2 absorbed by algae connected to land through inter-tidal zones

Question 9

Coral Reefs

Answer 9

Warm and shallow limiting

Plants occur with sand accretion primary succession

Question 10

Patch reef

Answer 10

Outcrops

Question 11

Cats

Answer 11

Sandy Islands forming on Coral Reef

Question 12

Estuary

Answer 12

Where freshwater meets saltwater.
Complex ecosystems with changes in water salinity with each tide
High level nutrients in water

Question 13

Lake

Answer 13

Relatively still water body not directly connected to ocean larger than a pond

Question 14

Pond

Answer 14

Relatively still water body not directly connected to ocean smaller than a lake

Question 15

Littoral Zone

Answer 15

Closes to shore where a wide variety of plants are due to shallow and warm environments

Question 16

Rivers

Answer 16

Moving linear end up in the ocean plants are adapted to constant motion dynamics change rivers

Question 17

Plant succession

Answer 17

A series of predictable changes over time in the kinds of plants growing in an area

Question 18

Primary succession

Answer 18

No plant growth has been there before

Question 19

Secondary Succession

Answer 19

Already has soil proof that plants have been there before and takes a quicker time to recover

Question 20

When can succession occur

Answer 20

At any stage or can reset at any stage because of disturbances

Question 21

How does succession begin

Answer 21

Due to disturbances such as fire

Question 22

Soil

Answer 22

Parent material soil particles consist of naturally occurring inorganic mineral compounds usually made two or more elements.
Contains sand silt clay

Question 23

Soil pH directly influences soil fertility and nutrient availability

Answer 23

Low Ph- nutrients very soluble and easily removed by plants

High pH- nutrients less soluble more difficult for plants

Question 24

What type of soil is most fertile

Answer 24

Neutral or slightly acidic

Question 25

Population

Answer 25

A group of organisms all of the same species which occupy a certain geographic area

Question 26

Community

Answer 26

Any grouping of populations of different organisms found living together in a particular environment

Question 27

Ecosystem

Answer 27

Discrete unit that consists of both living and non living parts interacting to form a stable system

Question 28

Landscape

Answer 28

Multiple ecosystems

Question 29

Abiotic

Answer 29

All inorganic substances move in cycles from the physical environment to organisms then back

Question 30

Biotic

Answer 30

The community that supports living organisms

Question 31

Biodiversity

Answer 31

The variety of and variability of life forms both living and extinct including genetic and ecosystem diversity in a defined area at and over time