Energy transfer through trophic levels

Question 1

In an ecosystem through which energy and matter are transferred, trophic levels are simply refer to the..

Answer 1

feeding level

Question 2

The first trophic level are producers that provides all the..

Answer 2

chemical energy / ATP that is required to fuel the other trophic levels

Question 3

Other than the first, all trophic levels are..

Answer 3

Consumers

Question 4

What consumer that feeds on any trophic level?

Answer 4

Decomposers

Question 5

When energy is transferred from producers to consumers, the energy is..

Answer 5

Lost by %90

Question 6

The second law of thermodynamics is..

Answer 6

When energy is transferred, less energy is avaliable to do useful work.

Question 7

Each time energy is transferred from producers to consumers, energy that is lost is converted as..

Answer 7

unusable heat

Question 8

In the second law of thermodynamics, the largest amount of energy is found within..

Answer 8

The first trophic level of the food chain

Question 9

what is the food chain?

Answer 9

Plants, insects, bigger insects, reptiles and big birds

Question 10

The trophic level with the most energy is..

Answer 10

the first tropic level, plants

Question 11

the trophic level with the least energy is..

Answer 11

the fifth tropic level, big birds, humans

Question 12

the trophic levels of food chains has limited amount of..

Answer 12

there is a limited amount of energy in each level

- ex. first level 10 000 kj, second level 1 000 kj

Question 13

The rule of 10 is used by ecologists that assume that..

Answer 13

10% of energy at one trophic level is transferred to the next.

Question 14

The rule of 10 results in a lost of..

Answer 14

90% energy lost with each step

Question 15

The first tropic level of the food chain consists of how much energy?

Answer 15

10 000 kj of energy

Question 16

The last trophic level of the food chain consists of how much energy?

Answer 16

1 kj of energy

Question 17

What is bioaccumulation?

Answer 17

Bioaccumulation is when an organism accumulate pesticides or chemicals in its system

Question 18

Why does bioaccumulation occur?

Answer 18

Bioaccumulation occur when toxins build up

Question 19

What trophic level bioaccumulation impact the most?

Answer 19

The last trophic level as the last consumes the most

Question 20

Bioaccumulation is harmful to us because?

Answer 20

it can get into our food (cows, pigs)

Question 21

What are the 3 ecological pyramids?

Answer 21

Pyramid of numbers, Pyramid of biomass, Pyramid of energy

Question 22

Earth is a closed system when..

Answer 22

Regards to matter

Question 23

Earth is a open system when..

Answer 23

regards to energy

Question 24

List the 3 biospheres..

Answer 24

Lithosphere, hydrosphere, atmosphere

Question 25

Lithosphere is..

Answer 25

land

Question 26

Biotic in biosphere means..

Answer 26

living parts of the biosphere

Question 27

Abiotic in the biosphere is..

Answer 27

non living (soil, whether etc)

Question 28

Also the second law of thermodynamics is that the largest amount of energy is within the first..

Answer 28

trophic level