Biology: Adaptations

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Questions and Answers

What happens if aquatic plants are unable to get enough sunlight?

They grow faster

They change color

They cannot perform photosynthesis (correct)

They produce more leaves

Water lily leaves are able to float on water.

True

What adaptation does the water fern have to float on water?

Hairs on the leaves that trap air

Aquatic plants ________________ or have leaves above the water surface to obtain sunlight.

float Signup and view all the answers

Match the aquatic plants with their adaptations:

Water lily = Waxy leaves Water hyacinth = Air spaces in the swollen leaf stalk Water fern = Hairs on the leaves that trap air Signup and view all the answers

What is meant by structural adaptations?

The physical characteristics of an organism that help it survive in its natural habitat Signup and view all the answers

Organisms that are adapted to their environment will either have to move to a different habitat or die.

False Signup and view all the answers

What is one way plants adapt to conserve water in hot environments?

Having needle-like leaves to reduce surface area and water loss Signup and view all the answers

Having a _______________ body shape helps animals adapt to moving in water.

streamlined Signup and view all the answers

Match the following adaptations with their respective environments:

Having large ears to lose excess body heat = Hot environments Having closely packed feathers or thick fur and a layer of fat under the skin to trap air and stay warm = Cold environments Having air tubes that extend above the water surface = Underwater Having good night vision = Dark environments Signup and view all the answers

Climbing on supports is an adaptation of aquatic plants to obtain sunlight.

False Signup and view all the answers

What is one way animals adapt to breathing underwater?

Having gills to take in oxygen from water Signup and view all the answers

Having strong, _______________ stems helps land plants adapt to obtain sunlight.

woody Signup and view all the answers

What is meant by behavioural adaptations?

The special ways an organism behaves to survive in its natural habitat Signup and view all the answers

Plants can survive without sunlight.

False Signup and view all the answers

Study Notes

Types of Adaptations

Structural adaptations: physical characteristics that help an organism survive in its natural habitat
Behavioural adaptations: special ways an organism behaves to survive in its natural habitat

Adaptations for Survival

Organisms that are adapted to their environment can cope with factors such as temperature and light, get air, water, and food, and protect themselves from predators
Organisms that are not adapted to their environment will either have to move to a different habitat or die

Adaptations for Hot Environments

Having large ears to lose excess body heat
Avoiding the Sun's heat by staying underground or in the shade during the day
Obtaining water from plant parts that they eat
Feeding on the nectar or sap of plants
Sweating and urinating very little to conserve water
Having needle-like leaves in the form of spines to reduce surface area and water loss
Having thick fleshy stems that store water
Having roots that spread out over a wide area to absorb as much water as possible

Adaptations for Cold Environments

Having closely packed feathers or thick fur and a layer of fat under the skin to trap air and stay warm
Travelling long distances to avoid the cold weather
Hiding and resting during winter to conserve energy
Having needle-like leaves to reduce water loss
Shedding leaves to survive the winter

Adaptations for Breathing Underwater

Having air tubes that extend above the water surface
Using moist skin to absorb oxygen
Having gills to take in oxygen from water
Trapping air bubbles
Having nostrils or blowholes at the top of the body to breathe

Adaptations for Moving in Water

Having a streamlined body shape
Having special body parts like webbed feet, fins, and flippers

Adaptations for Flying

Having well-developed wings
Having feathers
Having a streamlined body shape
Having strong, hollow bones

Adaptations for Living in Dark Environments

Having good night vision
Having body parts that can light up

Adaptations for Obtaining Sunlight

Having strong, woody stems to hold up branches and leaves
Climbing on supports like walls, fences, or other plants
Creeping along the ground with stems that spread out
Having leaves that float on the water surface or extend above it
Having waxy leaves that repel water
Having air spaces in the leaf stalks

Adaptations of Aquatic Plants

Some aquatic plants float or have leaves above the water surface to obtain sunlight
Having large waxy leaves that allow water to run off
Having air spaces in the swollen leaf stalk to help the plant float
Having hairs on the leaves that trap air to allow the leaves to float on the water surface

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Description

This quiz covers the different types of adaptations in organisms, including structural and behavioural adaptations, and how they help organisms survive in their natural habitats.