ecosystems

Question 1

define biosphere

Answer 1

is composed of biomes and is made up of all the microbes, plants and animals on earth

Question 2

define biomes

Answer 2

regions of the world with similar climates, animals and plants

Question 3

name the five major biomes

Answer 3

aquatic, desert, forest, grassland and tundra

Question 4

define ecosystem

Answer 4

a group of biotic and abiotic things interacting with each other

Question 5

define biotic factors

Answer 5

includes all living organisms

Question 6

define abiotic factors

Answer 6

includes all non-living things such as temp, light intensity, wind speed, rainfall, humidity, pH and salinity

Question 7

define community

Answer 7

populations of various species that are living at the same time and place

Question 8

define population

Answer 8

individuals of the same species that occur together in time and place

Question 9

define habitat

Answer 9

a place where an organism lives that has food, shelter and water

Question 10

define organism

Answer 10

a single living creature

Question 11

what is a food chain

Answer 11

shows the flow of energy from organism to organism through an ecosystems

Question 12

what is a food web

Answer 12

shows how food chains are linked together into more complex feeding relationships

Question 13

what are the tropic levels

Answer 13

1. producers 2. primary consumer 3. secondary consumers 4. tertiary consumers

Question 14

define autotroph

Answer 14

an organism capable of making its own food

Question 15

define heterotroph

Answer 15

an organism that must eat or consume other plants or animals as a source of energy

Question 16

define decomposer

Answer 16

organisms which breaks down organic material such as the remains of dead organisms and results in the cycling of nutrients