Adaptions 1

Question 1

Biotic factors

Answer 1

Livingfactprs that influecne population growth or decline eg. competition with other speciies for food

Question 2

Abiotic factors

Answer 2

inherited non liviing characteriiscs that make an orgnaism better suited for their enivornment and increase their chance of suriival eg. humans use to have curled feet so that we could climb trees to look for predators and food

Question 3

Types of adaptions

Answer 3

Structural adaptions
Physiological adaptions
Behavioural adaptions

Question 4

What is the tolerance range

Answer 4

The range of enviornmental conditions that organisms are able to tolerate for survival

Question 5

physiolgocial adaption

Answer 5

physicologyical adaptions are a feature of an organisms functioning that incrases its chance of surival eg. sweaitng to evpaorate heat and decearease body temp

Question 6

behavioiral adaptions

Answer 6

actions perofrmed by orgnaisms that helps an organism to survive and reproduce

Question 7

as without genetic varation, natural selection cannot happen this means that

Answer 7

a species cannot evolve without natural selection, therefore species is less likely to survive

Question 8

biotic and abiotic pollinators

Answer 8

iotic pollinators are living organisms, while abiotic pollinators are non-living mechanisms of pollen transfer.

Question 9

Ecosystems

Answer 9

interactions etween organisms and the enviornrment eg. explain the relationship between bees and flowers

Question 10

population

Answer 10

group of animals belonging to the same species in the same area

Question 11

Structual adaption

Answer 11

physialc features usually extneral that improve nad organsims chances of surivval eg. long ears to increase heat loss

Question 12

habitat

Answer 12

area of the enviornment when a commnity of species live eg, rainforsest

Question 13

define adaptions

Answer 13

Inherited characteristics that makes an organism better suited to its environment and increases its chance of survival

Question 14

What allows a greater resilence to envorental change

Answer 14

having a larger gene pool because then there are lots of alleles and thus a greater chance that of those alleles there are some alleles that will adapt to the new enviornemnt

Question 15

In a hot dry desert, list structural, physiooliglca and behvairoual adaptions of animals in this enviornrment

Answer 15

1. Strucutal adaptions: Less fur and fat to decrease insulatiion of heat and the animals will have a low SA:V ratio of the body that less heat is absorbed but large SA:V of the ears so more heat can be released

2.Physicolgical adaption: Sweating

3.Behaviorual adaption: The animal may dig a burrow to hide themeslevs from the hot sun

Question 16

what does coutner current flow do

Answer 16

maints bdoy temp as warm blood that flows in one direction is exchanged with the cold blood that runs in the opposite direction

Question 17

why is counter currnet flow benficial into a cold enviornemtn isntead of a heat environment

Answer 17

counter current flow reduces heat loss, and makes sure body temp isnt lowered.

Question 18

why do plants need to adapt to cold envroments

Answer 18

lackof food resources, less photoshtnesis lacko f

Question 19

plant are dying due an enzyme malfunction, what is an adaption for a plant for this

Answer 19

Plants produce antifree proteins which disurpt the formation of ice within cells,which allows to increased enzymeactivity and ulmitaely for nutrients to be transolocated and water to be transported

Question 20

At low temperatures, cell membrane fluidity decreases, which can quickly lead to disruption of the lipid bilayer, decreased membrane protein effectiveness, and cell contents leaking out. To deal with this, many cold-adapted plants will do what?

Answer 20

alters chemical composition of the lipid membranes for example increased cholesterol production

Question 21

what are bhevairoual adpations of animalsto sruivial inhot desert

Answer 21

being nocturnal to evade predators and hunt for food at night

Question 22

How does the ratio of surface area to body volume affect the ability of an animal to regulate its body temperature? Provide examples for a hot and cool environment.

Answer 22

1.low sa:v allows less heat to be abosrbed eg. elephant bodies

2.reduced SA:V allosw heat to be absorbed slowly

Question 23

ammenalism nad give an example

Answer 23

a relationship where organism experiences a negative impact whilst another orgniams is not harmed

eg. bacteria are killed by the fungi, penicillin. te fungiis not harmed when the bacteria is killed

Question 24

Paraitism

Answer 24

where one orgnaism the parasite feeds on the the host, it doesnt kill the host but it causes harm

Question 25

keystone speicies

Answer 25

species that play a criticl role in the maintaining the structure of an ecosystem

Question 26

Scientists believe that the hunting and elimination of dingoes by European settlers resulted in an increase in the numbers of smaller marsupial predators that hunted much of their prey to extinction. Describe how this information would suggest that dingoes are a keystone species in Australian ecosystems

Answer 26

dingoes provided balance in this ecosystem. Remvoing the dingos caused an increas ein the population of smaller masrupail predators tha causes dingoes pray to become extinisct.

Question 27

what makes a speices a keystone speices

Answer 27

being at the top of the food chain and apex predators

Question 28

coutner currentflwo

Answer 28

exchnage of heat between arteries and veins in parelle directions