Biology

Question 1

What is an ecosystem

Answer 1

All parts of biological community and environment.

Question 2

What does biotic mean

Answer 2

Alive

Question 3

What does abiotic mean

Answer 3

Not alive

Question 4

What is competition

Answer 4

When two organisms compete for the same space, the same food at the same time

Question 5

What is predation

Answer 5

When one organism consumes another as food

Question 6

What is symbiosis

Answer 6

Close association of two separate species

Question 7

Hag is the lithosphere

Answer 7

The ground part of the earth. Litho meaning stone

Question 8

What is hydrosphere

Answer 8

The water sphere. Hydro meaning water

Question 9

What is Atmosphere

Answer 9

The layer of air above the surface. Atmo meaning vapour

Question 10

What is biosphere

Answer 10

The living surface of earth. Not always separate from other sphere.

Question 11

What is evaporation

Answer 11

Water that is boiled into vapour.

Question 12

What is transpiration

Answer 12

Water coming from plants

Question 13

What is condensation

Answer 13

Converting vapour into rain

Question 14

What is precipitation

Answer 14

The act of Rainfall

Question 15

What is surface runoff

Answer 15

Water coming from mountains and running into rivers

Question 16

How do humans impact carbon cycle.

Answer 16

We burn fossil fuels and breath out co2.

Question 17

How do animals create carbon waste

Answer 17

By eating plants with carbon and creating waste from it.

Question 18

How do trees impact carbon cycle

Answer 18

Turn co2 into oxygen

Question 19

Why do plants and animals require nitrogen

Answer 19

To make dna and protein

Question 20

What is nitrogen fixation and why does it happen

Answer 20

Because nitrogen has strong bonds, for plants and animals to use it it must be broken up. Nitrogen fixation is that transformation.

Question 21

What is species diversity

Answer 21

Number of different species in ecoystem

Question 22

What is genetic diversity

Answer 22

Difference among same species individuals in ecosystem

Question 23

Describe the heat circle

Answer 23

Energy comes from abiotic things into producers. Heat then goes to the consumer and after decomposers

Question 24

List the energy levels for trophies pyramid

Answer 24

Primary producer: 100
Primary consumer: 10
Secondary consumer: 1
Tertiary consumer: .1
Quaternary consumer: .01

Question 25

Difference between food chain

Answer 25

Food chain is linear and food web more resembles a spider web

Question 26

What is bioaccumulation

Answer 26

When pollutants enter an organisms body

Question 27

What is biomagnification

Answer 27

When pollutants are passed up a foodchain

Question 28

Examples of pollutants in biomagnificaiton

Answer 28

Pesticide DDT, mercury, and other heavy metaks

Question 29

What is chemical equation of photosynthesis

Answer 29

6co2 + 6h2o -> c6h12o6

Question 30

What do chloroplasts do with sunlight

Answer 30

They make glucose

Question 31

What does the plant do with roots

Answer 31

Draw up water and mineral

Question 32

What elements go in and out of plants during photosynthesis

Answer 32

Carbon dioxide goes in and oxygen out

Question 33

Are populations consistent? If yes what can change them

Answer 33

Yes. Climate change and human interference

Question 34

What is a limiting factor

Answer 34

Characteristic of ecosystem that limits size

Question 35

What is exponential growth

Answer 35

When populations increase non-linearly

Question 36

What is bottom-up regulation

Answer 36

When a species number is regulated by those on higher tropic levels

Question 37

What is too-down regulation

Answer 37

When a species numbers depends on those below in trophies. Level

Question 38

What is ecological succession

Answer 38

Ecosystem changes due to major disturbance

Question 39

Why is primary succession

Answer 39

When an ecosystem can support life for first time

Question 40

What is secondary succession

Answer 40

When an ecosystem used to support life but still has basic needs for life (food water space)

Question 41

What is special concern

Answer 41

Species could become endangered due to threats and biological characteristic

Question 42

What is a threatened species

Answer 42

Likely to become endangerment’s if no action is taken

Question 43

What is an endangered species

Answer 43

Extinction or extirpating may come soon

Question 44

What is extirpation

Answer 44

Species is extinct from one area but still exists elsewhere

Question 45

What is extinction

Answer 45

Species is extinct everywhere

Question 46

What are main human causes of habitat loss

Answer 46

Urbanization. Dams. Logging. Farming. Mining.

Question 47

What are natural causes of habitat loss

Answer 47

Flooding. Earthquakes. Volcanic eruption. Climate change.

Question 48

What is fragmentation

Answer 48

Habitat is split into parts. This could happen from human or earthquake interference.

Question 49

What is an invasive species

Answer 49

Organism that thrives in a non-native environment. Can not be removed but can be controlled.

Question 50

What is mechanical control

Answer 50

Physically removing an invasive species. Could be done with plants

Question 51

What is chemical control

Answer 51

Using chemicals to kill invasive species. May cause harm to humans and other plants

Question 52

What is biological control

Answer 52

Introducing a predator to kill an invasive species

Question 53

What causes acid rain

Answer 53

Formed when water in air interacts with pollutants.

Question 54

What happens if acid rain hits soil

Answer 54

It may alter its ph. Which is a limiting factor of plants. At ph less than 5.5 fish eggs will not hatch and below 5 fish will dir

Question 55

What happens to ecosystem with acid rain

Answer 55

One part of a food web may be sensitive to ph change and impact it’s predators and then it’s predators and so on