Ecology test

Question 1

what type of growth is exponential grouwth (describe graph)

Answer 1

Has a lag phase but then goes up increasingly fast (no carrying capacity phase)

Question 2

when would you say r-

Answer 2

to describe the animal or thing that you are graphing

Question 3

how to graph both growths

Answer 3

of indivulaes on the left side - time at the bottom

Question 4

what are the characteritisics/signs of exponential growth

Answer 4

• usual small
• lots of offspring (babies)
• short life span

Question 5

examples of exponenrtial growth animals

Answer 5

-insects (spiders)
-weeds(dandenlions)
-salmon(lay 100s of eggs)

Question 6

What growth are turtles

Answer 6

Exponential
- they are big but they have a bunch of babies and most of them don’t even make it to the water bf being killed

Question 7

2 Example of exponential growth

Answer 7

1. in the spring there are 100 bunnies -> late spring there are 1,000 bunnies after they mated and gave birth – lag phase = is in the winter - exponential phase = late spring after mating and birth
2. 2 geese have 5 babies each of those 5 babies have there own five babes - 2, 7, 32 ect.

Question 8

lag phase

Answer 8

slow growth (beggining of graph)

Question 9

exponential phase

Answer 9

increasing increasingly - faster rate - not conastants ( increases more every time

Question 10

what type of a graph is Logistic Growth

Answer 10

Lag phase -> exp phase -> carrying capacity ( lagging, spikes up, then it becomes steady. ex 2 ,4 -> 50, 108 -> 105, 107
K-growth

Question 11

carrying capacity

Answer 11

Depending if you have … affects if you have a low of a high cc
- food
-space
-higher temp
hunting, fishing

Question 12

Highest carrying capacity in the world

Answer 12

Coral reefs + rainforest

Question 13

signs/ charactertisics of logistic growth

Answer 13

-big
-few off springs
-longer life spans

the moms normally stay by their kids like polar bears and thats why they don’t have a lot of babies + thats why they live longer

Question 14

can somethign fit in both graphs?

Answer 14

no everything fits one graph

Question 15

examples of k-growth species

Answer 15

polar bears, elephant, giraffe, pine tree, maple trees

Question 16

exmplantion of a logistic growth situation

Answer 16

a few deers -> they start to mate and go into the expontiaonl phase -> then people start hunting them which is the carrying capacity

Question 17

how do invasive species flourish/not die

Answer 17

-lack of predators
- no co-evouluation (ex. nothing evolves to be immune to the venom or like the taste ex)
-weather conditions are perfect (condionts like where it normaly lives)

Question 18

where do most evasive species normally live

Answer 18

tropical areas

Question 19

peral pigs ex

Answer 19

from eurpoe bad cuz they alter the water. Its ok that eurpoe has them bc they have predaorts and they have been their for millions of years (eurpe adapted)

Question 20

Birmuse Pyathon ex. with growth

Answer 20

from asai, were in a breeding facilaty but got knocked out during hurricane. The lag phase was them growin slowly and starting to mate - they then got huge and multipled like crazy (exp. phase) and no cc bc there wasnt

1. no preadorts
   2.no co evultiaon
2. floraida temp js like asai (tropical)

Question 21

examples of some invasive species

Answer 21

red savage crayfish
lion fish
birmuse pyathon
japense knotweed

Question 22

sustainablity

Answer 22

less of an impact on the enviorment - things taht are sustainable have a net 0 impact ( not postivie or negative)

Question 23

ex of sustainablity

Answer 23

1. composting, water bottle,
3. cut down tree -> make pencilas -> plant more trees -> cut down trees -> make pencils -> plant trees
4. woodys pond water -> into sprinklers - water into pond -> then water into sprinklers

Question 24

what are net postives and net negatives

Answer 24

+ = garden , saving money in bank accent

• = most of what humans do/ cruise drive, pollution , make pencils but don’t put in new ones

Question 25

habitat

Answer 25

were you go home, sleep eat dinner(live) this can be your (state , home, street adress or country)

Question 26

niche

Answer 26

the job you have to do at current part in life

ex.
student, note tracker, learning , althlete

Question 27

niches do’s and don’ts

Answer 27

– Two animals in dif habitats can do the same thing
- if you do the same job + in the same habitat one of you has to die or go extinct
- you can live in same place+ do same job if you do jobs at dif times (night/day eagle - sun. owl - night

Question 28

Predation

Answer 28

it KILLS and EATS you - if it already dead + u eat it your not a predadator

ex. lion, cheetah, shark

Question 29

Parasistismi

Answer 29

hurt enough thats it bad but they can still come back. (I need you even tho I hurt you but you don’t need me)

ex. misquto + humans, lice + humans, leech + fish

+ - = experience

Question 30

Mutualism

Answer 30

I need you + you need me. SEPARATE THE TWO BOTH DIE

+ + = expirence

ex. bees + flowers, bacteria in our gut - they leave wen and them die

Question 31

commensalsim

Answer 31

one is benefited the other is nothelped or harmed.

ex. barnacles on whales, cattle egrets on cows eating the food reminets

Question 32

what is the 10 percent rule

Answer 32

90% of calorases leaves body 10% stays

ex. Plant 100% 90 cal -> Grasshoppwer 10% 9 cal - > Mouse 1% .9 cal -> Snake .1% .09 cal

Question 33

what makes you lose so much calorasies

Answer 33

-normal actictivy (thinking, talking, walking)
-workout
-waste(poop + pee)
-heat loss

Question 34

niche partitioning ex

Answer 34

cheethas lion
- speed. -in pride
shape dif
eats baby gazlee. - hunt water buffaloujtu

Question 35

Bio geo chemical meaning

Answer 35

Life, rocks, chemical (in air or water)

Question 36

example of the carbon cycle

Answer 36

1. carbon in my body - gets on twoel- towel on rack- it gets clean - down drain - into rocks - and i go outside and breath/exhale (photosynethesis is how plants/rocks get carbon?)

Question 37

why is there pollution with carbon

Answer 37

humans r putting more carbon in hte air faster than the plants can take it in photosynethesis

Question 38

what is nitrogen

Answer 38

it is protein

Question 39

what cycle is mising one of the bio geo chemical elemnts

Answer 39

Phosphorus doesn’t have a chemical aspect (air/water)

Question 40

examples of nitrogen

Answer 40

2. eat a burger- from the cow -cow eats grass - grass has protein - grass got it by bacteria in its roots - bacteria got nitrogen from air

Question 41

what has a lot of phosphorus + ex

Answer 41

DNA, - eating salmon - puts cells that ahve there DNA into ours

Question 42

what does level of phosophorsu depend on

Answer 42

how much it has been processed.

Question 43

What happens to the 10% of the cal that stay in you?

Answer 43

it goes into your growth, weighing more, hair grwoth, making new cells, making new skin cells, some goes to muscles but then you exertge that

Question 44

decomposers + ex

Answer 44

eats decaying material (chemically)

ex. fungi + bacteria

Question 45

scavengers + ex

Answer 45

eats bigger meals and finds something that is already dead (big things)

ex. vulture + racoons