1.1 - water: an essential abiotic factor

Question 1

abiotic factor

Answer 1

living thing/factor
a living organism in the environment

Question 2

abiotic factor

Answer 2

non living things/factor
non living things part of the environment

Question 3

ecosystems

Answer 3

all the organism in an area as well as the abiotic factor with which they interact./a community of living organism that interact with each others

Question 4

habitat

Answer 4

all biotic and abiotic factor present in an area that encourage the reproduction and survival of a particular organism./ natural environment where plants and animals lives and grows

Question 5

algae

Answer 5

microscope, photosynthetic organism that play a vital role in marine and freshwater ecosystems./ small plants that can be found in water

Question 6

harmful algal blooms ( eutrophication)

Answer 6

a rapid growth of algae that can deplete the oxygen dissolved in water and block the sunlight required by other organism in the aquatic ecosystem./ excessive growths of algae that can have a negative effect on the environment

Question 7

nutrient

Answer 7

an element or compound an organism need for metabolism growth, or function./ a substance that is essential for the growth

Question 8

why is water important

Answer 8

• require by all living things as they are composed of 70-95% water
• water is universal solvent( water is good at dissolving nutrients)
• water is “polar” ( allows it to be attracted to many chemical cause it have both positive and negative ions)

Question 9

eutrophication steps

Answer 9

1) fertilizer from agriculture/farm
2) fertilizer finds it ways into nearby water. nitrates/nitrogen/phosphate
3) algae bloom (population growth)
4) algae die - decomposition - requires oxygen
5) limited oxygen for all other species