Ecosystems

Question 1

Producers and autotrophs

Answer 1

Organism at the base of the food chain that does not need to feed on other organisms.

Question 2

Photosynthesis

Answer 2

The food making nprocess in plants that takes place in chloroplasts within cells.

Question 3

Cellular respiration

Answer 3

The chemical reaction involving oxygen that moves the energy in gluecose into the compound ATP

Question 4

Aerobic respiration

Answer 4

The chemical breakdown of food using oxygen . The reaction needs enzymes, occurs in all body cells and releases energy.

Question 5

Glycolysis

Answer 5

Process by which gluecose is converted into a simple form during which energy is released.

Question 6

Krebs cycle

Answer 6

Part of the areobic respiration process in which carbon dioxide and ATP are produced.

Question 7

Electron Transport chain reactions

Answer 7

Part of the areobic repiration process

Question 8

Mitochondria

Answer 8

Small rod-shaped organelles that supply energy to other parts of the cell.

Question 9

Anaerobic respiration

Answer 9

The chemical breakdown of food without oxygen. The reaction needs enzymes occurs in cells and releases less energy than aerobic respiration.

Question 10

Lactic acid

Answer 10

An end product of anaerobic repiration in animals also known as lactate

Question 11

Organism

Answer 11

Living thing

Question 12

Spieces

Answer 12

A group of living organisms capable of interbreeding with each other but not a different spieces.

Question 13

Population

Answer 13

A group of individuals just like a spieces living in the same area at a particular time

Question 14

Community

Answer 14

More than one population living in the same area at a time

Question 15

Eco system

Answer 15

Communities of organisms that interact with each other and their enviroment.

Question 16

Ecology

Answer 16

The study of eco systems

Question 17

Producers

Answer 17

Organism at the base of the food chain that does not need to feed on the other organisms also known as an autotroph.

Question 18

Decomposers

Answer 18

Organisms that break down organic matter into inorganic materials

Question 19

Photosynthesis

Answer 19

The food making process in plants that takes place in chloroplasts within cells. The process uses carbon dioxide water and energy.

Question 20

Consumers

Answer 20

An organism that relies on other organisms for its food.

Question 21

Herbivores

Answer 21

Animal that only eats plants

Question 22

Primary consumer

Answer 22

The first consumer in a food chain also known as first order consumer.

Question 23

Carnivores

Answer 23

An animal that eats other animals

Question 24

Omnivores

Answer 24

Animal that eats plants and other animals

Question 25

Detritvores

Answer 25

Animal that feeds on and breaks down dead plant or animal matter

Question 26

Compettition

Answer 26

The struggle among organisms for food and territory

Question 27

Parasitism

Answer 27

A parasite living in another species otherwise known as the host.

Question 28

Mutualism

Answer 28

Relationship between two different organisms in which both benefit

Question 29

Commensalism

Answer 29

Relationship between organisms where one benefits and the other is unaffected

Question 30

Interspecific competition

Answer 30

Competition between different species

Question 31

Intra specific competition

Answer 31

compettition between the same spieces

Question 32

Predator- Prey relationship

Answer 32

Relationship between organisms that kills and eats another species for example a lion and a zebra

Question 33

Symbiotic relationships

Answer 33

Very close relationship between two organisms of different species. It may benefit or harm one of the partners

Question 34

Carrying Capacity

Answer 34

The amount of an organism the eco system can handle.

Question 35

emmigration

Answer 35

Leaving somwhere

Question 36

Immigration

Answer 36

Arriving somewhere.

Question 37

Chemosynthetic

Answer 37

Describes organisms that produce organic material using energy released from chemical reactions rather than light.

Question 38

Food chain

Answer 38

diagram that shows how the energy stored in one organism is passed to another

Question 39

Food web

Answer 39

diagram showing several food chains joined together to demonstrate that animals eat more than one type of food

Question 40

Trophic level

Answer 40

a level within a food chain, food web or food pyramid

Question 41

Energy pyramids

Answer 41

a representation of the level of food energy at each level within a food chain

Question 42

Pyramid of numbers

Answer 42

a representation of the population, or numbers of organisms, at each level within a food chain

Question 43

Pyramid of biomass

Answer 43

a representation of the dry mass of organisms at each level within a food chain

Question 44

Birth rate

Answer 44

the number of organisms within a population that are born within a particular period of time

Question 45

Death rate

Answer 45

the number of organisms within a population that die within a particular period of time

Question 46

Exponential growth

Answer 46

a rapid increase in number or size, represented by a J-shaped graph

Question 47

Sigmoid:

Answer 47

the shape of a graph that shows a population increasing in number then reaching a plateau

Question 48

Equilibrium, Plateau phase or steady state

Answer 48

a state in which conditions are balanced and there is neither growth nor a decrease in number; also known as steady state or plateau phase

Question 49

Zero population growth:

Answer 49

the point at which birth and death rates balance each other out