Question

help

Answer 1

@Vocaloid

Answer 2

@Vocaloid

Answer 3

check #1 again

energy cannot be created or destroyed would be the first law not the second

Answer 4

note: the net entropy of the universe must increase so what must be true about the organisms' entropy?

Answer 5

d?

Answer 6

good
#2+3 look good to me

Answer 7

good

Answer 8

yay

Answer 9

actually, that's not true, remember that carrying capacity is a theoretical number set by humans, there's nothing stopping nature from temporary exceeding capacity temporarily

Answer 10

hint: carrying capacity can change

Answer 11

so c

Answer 12

good, c

Answer 13

6 is because of 10% of oxygen decreasig as layerrs go up

Answer 14

hm, I think you have the right idea but I don't think it's oxygen that decreases by 10%, it's available energy that is only 10% of the previous trophich level

Answer 15

so from 90% it decreases 10% of energy from what is consumes or producers get from sun

Answer 16

yeah, you have the right idea

Answer 17

I think we typically treat the bottom level as 100% though

Answer 18

ok and i need an example animal like producer is a plant

Answer 19

pick a specific ecosystem, like a forest, and start with an organism like a tree producing seeds/nuts

think about what animals eat nuts
and think about what sort of animals eat those animals

Answer 20

ok so forest

Answer 21

so squirrel is primary consumer

Answer 22

good, keep going

Answer 23

a bear eats a squirrel?

Answer 24

that's a good example, but since bears are tertiary consumers (at the top) it might be best to pick another one for secondary consumer

Answer 25

ex. snakes eat squirrels so snakes are secondary consumers

what animals eat snakes?

Answer 26

wolf

Answer 27

good so

wolf (tertiary) --> snake (secondary) --> squirrel (primary) --> tree (nuts, producer)

Answer 28

this good

Answer 29

your calculations are incorrect

Answer 30

treat the tree as 100%

squirrel gets 10% of the tree
snakes get 10% of the squirrel's energy (10% of 10%)
wolf gets 10% of snake's energy (10% of 10% of 10%)

Answer 31

so 100 90 9 .09 ?

Answer 32

10% of 100% is not 90

Answer 33

10 1 .01

Answer 34

good

Answer 35

I'm not 100% sure but I would guess near carrying capacity

Answer 36

harvesting too early would halt growth and waiting until carrying capacity is reached would be detrimental to the population (overcrowding)

Answer 37

point 10 maybe

Answer 38

what do you mean?

Answer 39

you hvae to identify a point and justify

Answer 40

right, and I said pick a time near the carrying capacity

Answer 41

t = 10 is not near the carrying capacity

Answer 42

13

Answer 43

good, t = 13 seems to have the greatest slope

Answer 44

[still not 100% sure on this one though]

Answer 45

so how should i explain this

Answer 46

at t = 13 the growth rate is the largest so it would be beneficial to keep the population around that size

Answer 47

why not higher or lower just trying to completely explain my teacher is picky

Answer 48

come to think of it the slope is actually highest at t = 10 not 13 whoops

Answer 49

anyway, since we are asking for maximum production rate, we want the point where the slope of the graph is the highest

Answer 50

i was right lol

Answer 51

when t < 10 or t > 10 the slope starts to decrease which is why I would pick 10

Answer 52

that's all lol