Ecosystems

Question 1

An Ecosystem is

Answer 1

A community of plants and animals which interact with each other and with their non living environment i.e. soil, climate

Question 2

The environment is

Answer 2

The natural or physical surroundings where plants or animals live

Question 3

The non living environment includes

Answer 3

Rock, soil, air climate

Question 4

The living environment includes

Answer 4

Animals, birds fish insects peopl,e

Question 5

An ecosystem is

Answer 5

A community of plants and animals which interact with each other and with their non living environment i.e. soil, climate

Question 6

A biome is

Answer 6

A large ecosystem such as a desert or tropical rainforest

Question 7

The lack of rainfall in a deserts is due to air that is __________ when this happens no ________ form so there is no rain. _____________ blow over land and they bring dry conditions.

Answer 7

The lack of rainfall in a deserts is due to air that is Descending when this happens no Clouds form so there is no rain. Prevailing winds blow over land and they bring dry conditions.

Question 8

Hot deserts experience such hot conditions as a lack of cloud allows the ___ to heat the ground during the ___. At night this heat _______ to space, creating cold conditions

Answer 8

Hot deserts experience such hot conditions as a lack of cloud allows the Sun to heat the ground during the Day . At night this heat Escapes to space, creating cold conditions

Question 9

Lizard Adaptions

Answer 9

Desert of Guana, can change skin from dark to light

Question 10

Desert Cotton Tail adaptations

Answer 10

Large ears allow to shed heat and keep coolB

Question 11

Beatles adaptations

Answer 11

Long legs to keep of sand

Question 12

Kangaroo rat adaptatiopns

Answer 12

Can survive without drinking water at all

Question 13

Wildlife in hot deserts are _________ to avoid __________________-

Answer 13

Nocturnal to avoid the high daytime temperature

Question 14

Some burrow into the sand to _____________ some can store water __________________

Answer 14

Some burrow into the sand to keep cool some can store water for a long time

Question 15

Lizards are _______ and need __________ they cope well in hot climate.

Answer 15

Lizards are cold blooded and need heat to survive. They cope well in hot climate

Question 16

Desert wildlife includes

Answer 16

Scorpions, road runners and rattlesnakes

Question 17

Cactus & Plant adaptations in desert

Answer 17

soak up water because it wont rain for a long time
Spikes stop animals from eating the plant
Long shallow roots to find water after rainfall

Question 18

Describe Rainforest Climate

Answer 18

Very warm with an average temperature of 28 degrees Celsius temperature varies little through the year in the rainforest. Very wet with a total annual rainfall

Question 19

Describe plants in rainforest

Answer 19

The vegetation is extremely diverse and grows in a layered structure. Many hardwoods grow in the rainforest e.g. mahogany and numerous tree species are mixed together in the rainforest

Question 20

Describe animals in rainforest

Answer 20

The sloth uses camouflage and moves slowly to make it difficult for predator to spot. The spider monkey has large strong limbs to climb rainforest trees. The flying frog has fully webbed feet flap of loose skin to glide

Question 21

Describe rainforest soils

Answer 21

The soil is not fertile there is a thin layer of soil at the surface where the dead leaves decompose the forest plans quickly take up nutrients from this layer
Rainforest soils are called latosols the soils are red in colour because its rich in iron. Calosols are deep because rock has been quickly broken-down in humid conditions.

Question 22

Describe the rainforest water cycle

Answer 22

1. Heavy daily convectional rain
2. Trees intercept rain
3. Some rain reaches ground
4. Trees take up water
5. Water evaporates

Question 23

Describe rainforest nutrient cycle

Answer 23

1. Trees grow rapidly
2. Trees shed leaves all year round
3. Decaying vegetation decomposes rapidly
4. Nutrients enter the soil
5. Shallow roots take up the nutrients

Question 24

State 5 reasons for deforestation

Answer 24

Farming
Mining for animals
Flooding areas of land as part of hydroelectric power stations
Selling the timbre
Building roads through forest

Question 25

Effects of deforestation on animals

Answer 25

Less trees leading to habitat destruction and less biodiversity.

Deforestation destroys habitats of organisms that live within the trees. It can cause extinctions

Question 26

Effects of deforestation on climate

Answer 26

Plants carry out photosynthesis and absorb carbon dioxide and emit oxygen. If deforestation occurs there is less carbon dioxide therefore more in the atmosphere. If trees are burned after being cut more carbon dioxide will be located in the atmosphere and carbon dioxide is a greenhouse gas that contributes to global warming

Question 27

Effects of less transpiration/evaporation leading to less local rainfall

Answer 27

When trees are removed the water cycle is broken as there are no trees to transpire water nor tree leaves from which rainwater evaporates the air to produce the next days rain. Decreases in rainfall

Question 28

Deforestation effects on soil

Answer 28

When trees are removed they cannot protect the soil so nutrients are washed by the heavy daily rained with no roots to bind the soil, without trees the nutrients cycle is broking and the supply of nutrients to the soil is removed and the soil becomes infertile.