KA9 Bio

Question 1

The sun is…

Answer 1

the source of energy to output biological systems

Question 2

Producers convert ____ energy to _______ energy.

Answer 2

light, chemical

Question 3

what are consumers??

Answer 3

organisms that gets its energy by eating others

Question 4

what are primary consumers??

Answer 4

feeds on producers

Question 4

what are secondary consumers??

Answer 4

feeds on primary consumers

Question 5

what are decomposers??

Answer 5

organism that gets its energy from dead organisms or waste

Question 6

trophic level:

Answer 6

position of organism on the food web

Question 7

herbivore:

Answer 7

an animal that gets its energy from plants

Question 8

tertiary consumer:

Answer 8

feeds on secondary consumer

Question 9

quaternity consumer:

Answer 9

feeds on tertiary consumer

Question 10

carnivore:

Answer 10

an animal that gets its energy by eating other animals

Question 11

decomposers release ___ onto fod/waste to digest it and _____ the products of digestion (ie _____ from carbohydrates), _______ (proteins) and ______ and ______ (from lipids) which brings about decay.

Answer 11

enzymes, absorbs, gluclose, amino acids, glycerol, fatty acids

Question 12

Decomposers benefit the ecosystem by..

Answer 12

1) removes dead organisms and waste
2) minerals are released

Question 13

a food web is..

Answer 13

a net work of interconnected food chains (Shows relationship of organisms)

Question 14

overharvesting:

Answer 14

taking more organisms that can be replaced by reproduction (ex: atlantic cod)

Question 15

impacts of overharvesting:

Answer 15

1) unable to reproduce
2) can cause extinction
3) impaxts whole foundation

Question 16

introduction of foreign species in a habitat:

Answer 16

non native species are introduced to habitat (ex: european rabbits)

Question 17

impacts of introduction of foreign species in a habitat:

Answer 17

1) kill native species
2) complete the food
3) destroy habitats

Question 18

energy enters the ecosystem as ____ energy.

Answer 18

light

Question 19

it is passed along the food chain as ____ energy by _____.

Answer 19

chemical, feeding

Question 20

energy leaves the ecosystem as _____ from ________.

Answer 20

heat, respiration

Question 21

in food chains, trypically only ___% is passed onto the next organism.

Answer 21

10%

Question 22

the other __% is lost from ____ through _______.

Answer 22

90%, heat, respiration

Question 23

some parts of the organism is ____ (such as ___ or _____) or they are _______(_____)_.

Answer 23

uneaten, teeth/bones, indigestable (fibre)