Ecosystems

Question 1

ecology

Answer 1

the study of relationships between living organisms and between organisms and their environment

Question 2

ecologist

Answer 2

a person who studies plants and animals in relation to their environment

Question 3

ecosystem

Answer 3

a particular area where a community and its abiotic environment interacts

Question 4

abiotic

Answer 4

non-living matter found in the environment

Question 5

biotic

Answer 5

living matter found in the environment

Question 6

community

Answer 6

a group of different populations living and interacting with each other in a particular ecosystem

Question 7

organism

Answer 7

one living individual

Question 8

population

Answer 8

a group of organisms of the same species living in the same area at the same time

Question 9

species

Answer 9

a group of living organisms that can interbreed and produce fertile offspring

Question 10

interbreed

Answer 10

the mixing of different species to produce offspring

Question 11

fertile

Answer 11

the ability to produce offspring

Question 12

niche

Answer 12

the role which a species normally performs (the job of a living organism)

Question 13

habitat

Answer 13

the environment in which a species normally lives

Question 14

producers

Answer 14

an organism that produces organic compounds from simple substances such as water and carbon dioxide

Question 15

autotrophs

Answer 15

organisms that use solar energy or chemical energy to make their own food

Question 16

cyanobacteria

Answer 16

a division of micro-organisms that are related to the bacteria but are capable of photosynthesis

Question 17

glucose

Answer 17

a simple sugar which is an important energy source in living organisms

Question 18

organic molecules

Answer 18

has carbon-hydrogen bonds and is created by living organisms

Question 19

starches

Answer 19

are white, granular, organic chemicals produced by all green plants

Question 20

lipids

Answer 20

organic molecules of fats and oils made of carbon, hydrogen, oxygen and some elements like sodium, potassium and phosphate

Question 21

proteins

Answer 21

organic molecules made of amino acids, structure an organism, specialised to form enzymes and hormones

Question 22

nucleic acids

Answer 22

organic molecules found in a cell, responsible for hereditary and protein synthesis

Question 23

consumers

Answer 23

organism that obtains its food by consuming organic material

Question 24

heterotrophs

Answer 24

organism that obtains food by feeding on other organisms

Question 25

herbivores

Answer 25

animals that feed on plants

Question 26

carnivores

Answer 26

animals that feed on other animals

Question 27

omnivores

Answer 27

animals or people that eats a variety of both plant and animal origin

Question 28

decomposers

Answer 28

organisms that break down dead or decaying organic matter

Question 29

saprotrophs

Answer 29

an organism that feeds on or derives nourishment from decaying organic matter