semester 1 exam revision

Question 1

biotic

Answer 1

living organisims eg.Plants/animals

Question 2

Abiotic

Answer 2

Physical rather than biological e.g. light temperature

Question 3

Ecosystem

Answer 3

A biological community of organisms e.g. pond

Question 4

Habitat

Answer 4

The natural home or environment e.g. desert

Question 5

Community

Answer 5

A group of people living in the same place

Question 6

Producer

Answer 6

Produces are organisms that can make their own and energy through biochemical processes which are processes in living things that involve chemical reactions

Question 7

Consumer

Answer 7

Do use of an object of food

Question 8

Decomposer

Answer 8

Organisms that breakdown dead organisms

Question 9

Photosynthesis

Answer 9

The process which plants use sunlight to change the size nutrition

Question 10

Competition

Answer 10

Where to organisms want the same resource such as food on nestings site both are harmed e.g. two kangaroos wanting grass the same

Question 11

Sim biosis

Answer 11

Interaction between two different organisms living in close physical association

Question 12

Parasitism

Answer 12

The practice of living as a parasite on or with another animal or organism

Question 13

Mutualism

Answer 13

A relationship in which both species benefit

Question 14

Communalism

Answer 14

And association between two organisms and which one benefits and the other gets none

Question 15

Autotroph

Answer 15

An organism that is able to form nutritional organic substance from in organic substances such as carbon dioxide e.g. plants

Question 16

Heteroph

Answer 16

An organism that derives its nutritional requirements from complex organic substances

Question 17

Ecological niche

Answer 17

Much of a species to have a specific environmental condition

Question 18

Predator prey

Answer 18

And interaction between two different organisms of unlike spaces in which one of them acts as a predator

Question 19

Endo

Answer 19

Within

Question 20

Actor

Answer 20

Outside

Question 21

Examples of abiotic factors

Answer 21

Temperature light and water

Question 22

Examples of the biotic factors

Answer 22

Animals birds plants fungi and other similar organisms

Question 23

Cellular respiration

Answer 23

A set of metabolic reactions and processes that place in the cell of an organism to convert chemical energy from oxygen molecules or nutrition into power

Question 24

Formula for aerobic cellular respiration

Answer 24

Fuel+oxygen = co2 + h20

C6h12o6 + 6o2 = 6co2 + 6h2o + energy(atp)

Question 25

Formula for an Anerobic respiration

Answer 25

Fuel = lactic acid+ energy

Question 26

Glucosesis

Answer 26

Is the metabolic or mathematical pathway that converts glucose into prior to a sequence of 10 enzymes catalyse reactions

Question 27

Herbivore

Answer 27

Only eat plants

Question 28

Carnivores

Answer 28

Only eat meat

Question 29

What is a motorcycle

Answer 29

Plants (consumer) = herbivor(1st level consumer) = carnivore(2nd consumer) = decomposer

Question 30

What is biomagnification

Answer 30

Biomagnification is a process where the concentration of a toxin increases as it moves through a food web

Question 31

Example of biomagnification

Answer 31

Plaktin(1ppm) = anemone(2ppm) = lobster(8ppm) = human(50ppm)

Question 32

What is an energy pyramid

Answer 32

energy is passed along the food chain from trophic level to trophic level only 10% of its energy is passed along

Question 33

And example of an energy pyramid

Answer 33

Plants(100 units) = herbivor(10 units) = carnivore(1 unit)

Question 34

What is biomass

Answer 34

The weight of all living things

Question 35

What is an edge to spaces

Answer 35

And introduced species is one that has been released into an exit ecosystem where it does not naturally occur at food web is delicately as delicate especially with new spaces

Question 36

What is carrying capacity

Answer 36

Maximum population in an ecosystem

Question 37

What is exponential growth

Answer 37

Population quickly rising at an increasing rate

Question 38

What is a biosphere

Answer 38

The strip around the earth that supports life

Question 39

What is a food web

Answer 39

I web of consumers and a graphical representation of what it’s white and ecological

Question 40

What is the food chain

Answer 40

A food chain is a lane network of links in a food web starting from reduce produce organise an ending and X prejudice basis

Question 41

Formula for photosynthesis

Answer 41

6co2 + 12h2o = c6h12o6 +oxygen + water

Question 42

Atmosphere what is it

Answer 42

A blanket of gases that surround the earth to the height of approximately 445 km mostly nitrogen/oxygen which supports life on earth

Question 43

What is the crust

Answer 43

What is the crustThe crust includes landforms rocks and soil mostly solid rock rigid and strong it varies in thickness

Question 44

What is a hydrosphere

Answer 44

Water on or at the surface of the earth including ocean lakes/rivers/rain/mist

Question 45

What is the mantle

Answer 45

The mantle is mostly solid rock temperature between 500°C and 2000°C is about 9000 2900 km thick

Question 46

What is the outer core

Answer 46

Molten iron and eat and nickel temperature is between 4000°C and 6000°C about 2300 thick

Question 47

What is the inner core

Answer 47

Mostly I am sold solid to the extreme pressure temperature about 7000°C and 1200 km thick

Question 48

What’s the theory of plate tectonic’s

Answer 48

The theory states that the earths solid outer crust the lesser lithosphere is separated into plates that move over earth

Question 49

What is continental drift

Answer 49

Continental drift is the gradual movement of the continents across the earth surface through geological time

Question 50

Divergent

Answer 50

Divide

Question 51

Convergent

Answer 51

Collide

Question 52

Transform

Answer 52

Slide

Question 53

What can happen happen at convergent plate boundaries

Answer 53

Subduction or collision

Question 54

What can happen at divergent plate boundaries

Answer 54

Divide