Energy flow

Question 1

name a producers?

Answer 1

a plant because it can produce food through photosynthesis

Question 2

what are consumers?

Answer 2

animals that get their food through other organisms

Question 3

what does trophic mean?

Answer 3

feeding

Question 4

what can food chains be linked to form?

Answer 4

food webs

Question 5

what is another sentence for saying; energy is passed from one organism to another?

Answer 5

from one trophic level to another

Question 6

name a plant that can start off a food chain

Answer 6

algae

Question 7

what do badgers eat when they are primary consumers?

Answer 7

seeds

Question 8

what do badgers eat when they are secondary?

Answer 8

earth worms

Question 9

how can organisms at different trophic levels be counted?

Answer 9

a pyramid of numbers (pyramid of biomass)

Question 10

what is an animal that eats plants called?

Answer 10

herbivores

Question 11

what is used in a pyramid of biomass?

Answer 11

the mass of organism is used

Question 12

what can give a pyramid of biomass odd numbers?

Answer 12

if there are large consumers or if a small parasite lives on a large animal

Question 13

why does a pyramid of biomass always show a pyramid shape?

Answer 13

because of the large mass of the producer or the small mass of parasite

Question 14

what are animals called that eat meat and plants?

Answer 14

omnivores

Question 15

what are omnivores good at?

Answer 15

fitting into more than one trophic level

Question 16

how do you find the dry mass of an organism?

Answer 16

the animal or plant needs to be placed in a warm oven until all the water has been lost from it. This is not possible with living organisms so it has to be estimated

Question 17

what would happen if the number of one species changed?

Answer 17

another species would change

Question 18

how does energy enter a wood chain?

Answer 18

through photosynthesis.

Question 19

how does energy flow through a food chain?

Answer 19

as an animal feeds

Question 20

as energy flows through a food chain what is some of it used for?

Answer 20

growth

Question 21

finish this sentence,,, at each trophic level as much as 90% is transferred into…

Answer 21

other less useful forms such as heat from respiration, egestion and excretion

Question 22

how can the energy lost, be used in other food chains?

Answer 22

faeceas and uneaten parts can be used by decomposers for other food chains

Question 23

what does the shape of a pyramid of biomass show?

Answer 23

that energy level decreases with increasing trophic level

Question 24

write the equation for efficiency in a pyrami of biomass

Answer 24

efficiency = energy use for growth (dvided) energy supplied x 100