Adaptions

Question 1

Organisms in ecosystems face…(4)

Answer 1

Competition
Predation
Parasitism
Human influence

Question 2

Adaptions are special features that allow a plant or animal to …

Answer 2

Survive
Live
Grow
Reproduce

Question 3

Drought-resistant plants are know as..

Answer 3

Xerophytes

Question 4

What are drought resistant plants adapted to live and survive in

Answer 4

Very dry environments like deserts

Question 5

Xeropytes are specially adapted to …(4)

Answer 5

Absorb water
Store water
Prevent water loss
Protect themselves

Question 6

Xeropytes absorb water from their dry surroundings

Answer 6

• leaves are spiraly arranged to channel rainwater towards the roots
• root systems search for water under the dry desert soil
• the root have many tiny hairs to increase surface area for maxium water absorbsion

Question 7

Xeropytes store water

Answer 7

• thick fleshy stems or leaves store water

- underground bulb routes store water

Question 8

Xeropytes prevent water loss from their bodies

Answer 8

• leaves and stems covered by a cork layer or waxy cuticle to prevent dessication
• sunken stomata on leaves prevent water loss due to transpiration
• leaves can also be reduced to spines(thorns) protect Xeropytes to reduce transpiration

Question 9

Xeropytes protect themselves from animals that try to eat them to get water that is stored in the leaves or stems.

Answer 9

-leaves that are reduced to spines (thorns) protect Xeropytes from being eaten

Question 10

Aquatic plants are adapted to grow next to or in water and are known as…

Answer 10

hydrophytes

Question 11

4 categories of aquatic plant are…

Answer 11

submerged
floating
emergent
shoreline

Question 12

hydrophytes are submerged

Answer 12

plants that thrive under water , poorly developed root to anchor themselves into the mud at the bottom , roots don’t need to absorb water as they live in water, plants underwater lack stomata , they exchange gasses by diffusion with the water they live in.

Question 13

hydrophytes float

Answer 13

have either floating roots or roots in the soil at the bottom with long floating leaves or stems , these struictures are made of special spongy tissue (aerenchyma) which helps them to float easily , leaves covered in waxy cutile to prevent them rotting in water stomata located only on part of plant thats exposed to the surface

Question 14

aerenchyma

Answer 14

special spongy tissue that helps hydrophytes to float easily

Question 15

hydrophytes are emergent

Answer 15

plants that’re rooted in the soil under water but larger part is above the water

Question 16

example of emergant plants

Answer 16

papyrus, bullrushes

Question 17

shore line plants

Answer 17

plants that pefer the shorer but can take being mopoist and being flooded seasonally
eg:willow tree

Question 18

kinds of animal adaptations

Answer 18

structural
functional
behavioral

Question 19

what is a structural adaptation

Answer 19

physical characteristics such as long leg and strong muscles

Question 20

functional adaptation

Answer 20

a species may have special ways of carrying out its lifd processes such as laying eggs with a hard shell so that the babies are protected during climate changes

Question 21

behavioral

Answer 21

a species which have certain behaviores which are exinctive or learned such ,eg, making safe nests to protect their babies

Question 22

what factor indicates that an ecosystem is balnanced

Answer 22

population growth of different species over time

Question 23

natural factors

Answer 23

caused by nature

eg:volcanos, floods, tornado

Question 24

human factors

Answer 24

caused by humans

eg:war