Science Unit 5 Lesson 1-2

Question 0

What effects climates in an ecosystem?

Answer 0

Sunlight

Question 1

What areas receive more direct sunlight?

Answer 1

Areas closer to the equator receive more direct sunlight.

Question 2

What are deserts defined by?

Answer 2

Deserts are defined by the amount of precipitation in the area not by its location or temperature.

Question 3

Where are deserts found?

Answer 3

On every one of Earth’s continents

Question 4

One of Earth’s major land ecosystems, each with its own kind of climate, soil, plants,and animals.

Answer 4

Biome

Question 5

Where are Taigas ecosystems found?

Answer 5

South of the northern tundras

Question 6

How does receiving more direct sunlight effect the ecosystems near the equator?

Answer 6

They are rich with plants and animals

Question 7

How many Land Ecosystems are there?

Answer 7

Six

Question 8

What do organisms do that live in the desert ‘s dry conditions? Name some examples.

Answer 8

Organisms adapt.

1. Plants conserve water
2. Animals rest during the day and are active at night

Question 9

What are the possible temperatures of the deserts?

Answer 9

Hot and Cold

Question 10

What are the characteristics of permafrost?

Answer 10

1. Prevents trees and large plants from developing deep roots.
2. Lichens, mosses, grasses, flowers and low shrubs with shallow root systems can grow above it.

Question 11

Freshwater, saltwater or a mixture are all what?

Answer 11

Water Ecosystems

Question 12

An ecosystem where water is near the surface of the soil much of the time.

Answer 12

Wetland

Question 13

What are all environments?

Answer 13

An ecosystem

Question 14

Name to major Land Ecosystems.

Answer 14

1. Taigas
2. Tundras
3. Deserts
4. Grasslands
5. Deciduous Forests
6. Rain Forests

Question 15

The boundary where a freshwater ecosystem meets a saltwater ecosystem.

Answer 15

Estuary

Question 16

What are the different types of water ecosystems found on Earth?

Answer 16

Ponds, lakes, streams, rivers, wetlands, estuaries, and oceans.

Question 17

Is a set of habitats or ecosystem all grouped together into a kind of “super-ecosystem”.

Answer 17

Biome

Question 18

Can deserts be cold year-round?

Answer 18

Yes

Question 19

Where are cold deserts founded?

Answer 19

Greenland, Central Asia and Antarctica

Question 20

Why is the desert air cool at night?

Answer 20

Because there is no cloud cover and the dry air loses heat easily after dark.

Question 21

What is all the living and nonliving things interacting in the environment?

Answer 21

Ecosystem

Question 22

Where are Tundras ecosystems found?

Answer 22

In far northern regions

Question 23

A layer of permanently frozen soil?

Answer 23

Permafrost

Question 24

How do you characterize Land Ecosystems?

Answer 24

By the animals that live there, plants that grow there and soil.

Question 25

What is a Cool forest of cone-bearing evergreen trees?

Answer 25

Taigas

Question 26

What do all deserts have in common?

Answer 26

All are dry

Question 27

How are the seasons in the Taigas?

Answer 27

Winters are cold and summers are warm, wet and humid.

Question 28

What are some characteristics of Tundras?

Answer 28

1. Cold winters and short summers 2. Cold, dry biome that includes a layer of permafrost 3. Support fewer species than most other biomes 4. Some areas are covered with ice

Question 29

What was the land ecosystems of North America before the arrival of immigrant settlers?

Answer 29

Grassland and forests

Question 30

What do tundras, taigas and deserts ecosystems have in common?

Answer 30

1. They have harsh climates - may have extremely hot or cold temperatures or very little precipitation. 2. These conditions limit the types of plants and animals that can live there.

Question 31

How does receiving less direct sunlight effect ecosystems?

Answer 31

Fewer organisms live in Earth's polar regions.

Question 32

What does the dry desert air contain to block the Sun's warming rays?

Answer 32

Little moisture

Question 33

What are two characteristics of ponds and lakes?

Answer 33

1. Water does not appear to move | 2. A layer of green algae sometimes covers the water's surface

Question 34

What is a characteristic of the grasslands that make it great for farming?

Answer 34

It has fertile soil.

Question 35

Why is the ocean important?

Answer 35

1. Plays an important role in the water cycle | 2. Contains nutrients that support a variety of life forms

Question 36

How would you describe rainfall in the grasslands?

Answer 36

Irregular and usually not plentiful

Question 37

Almost no sunlight reaches depths greater than what? What does this cause?

Answer 37

200 meters (or 656 feet). Depths beyond this are increasingly dark and cold and photosynthesis does not occur here so organisms feed on each other and on materials that sink down from the ocean's surface.

Question 38

How would you describe the temperatures in the grasslands?

Answer 38

Cool in winter and warm in the summer. And can be windy.

Question 39

Where are temperate rain forests found?

Answer 39

In some Pacific Northwest areas

Question 40

Where are the wetlands found in Louisiana?c

Answer 40

Coastal Louisiana

Question 41

What are grassland s sometimes called?

Answer 41

Prairies

Question 42

What does the Ocean Food Chain include?

Answer 42

1. Plankton - live near the surface of the water 2. Nekton - animals that swim through the water 3. Benthos - organisms that live on or near the ocean floor

Question 43

Why are wetlands important today?

Answer 43

1. They are rich in plant life 2. Provide a home for many living things 3. Important breeding ground for birds and other animals 4. Serve as a natural water filter 5. Provide flood protection and erosion control

Question 44

What are the factors that effect living things in different regions?

Answer 44

1. Tides 2. Temperature 3. Salinity 4. Water pressure 5. Amount of sunlight penetrating the water

Question 45

What is different about estuaries?

Answer 45

They contain a unique combination of salt and fresh water. It has less salty than oceans but is saltier than water in rivers.

Question 46

What percentage of the Earth's surface does the ocean cover?

Answer 46

70%

Question 47

What are some adaptations that the organisms in streams and rivers have?

Answer 47

1. Reeds have roots that anchor them to the bottom. 2. Fish have streamlined bodies to help them swim in the currents. 3. Other animals have hooks and claws that help them cling to rocks and other objects.

Question 48

What do the wetlands include?

Answer 48

Swamps, marshes and bogs

Question 49

What are two characteristics of streams and rivers?

Answer 49

1. Have moving water | 2. Organisms have adaptations to keep from being swept away.

Question 50

List the Freshwater ecosystems that are found in Louisiana.

Answer 50

1. Ponds and lakes 2. Streams and rivers 3. Wetlands 4. Estuaries

Question 51

What is the climate like in the tropical rain forests?

Answer 51

Hot and humid with abundance of rainfall

Question 52

What is the Ocean divided into?

Answer 52

Regions

Question 53

What percentage of the wetlands in the United States are in Louisiana?

Answer 53

40%

Question 54

How would you describe the temperature in the deciduous forests?

Answer 54

Warm summer and cool winter

Question 55

Where do you find tropical rain forests?

Answer 55

Close to the equator

Question 56

How is the temperature of temperate rain forests compared to tropical rain forests?

Answer 56

The temperatures are lower than tropical rain forests and rainfall is plentiful.

Question 57

Where are deciduous forests found?

Answer 57

Eastern North America, northeastern Asia,and western and Central Europe

Question 58

The plants and animals that live in estuaries have what that helps them survive the variations in salt content (or salinity)?

Answer 58

Adaptations

Question 59

What does temperate mean?

Answer 59

Mild

Question 60

What does the sunlight do near the surface of the ocean?

Answer 60

Warms the water and provides energy for different photosynthesis species.

Question 61

What do many trees lose in the winter in deciduous forests? And what does this do?

Answer 61

Many trees lose their leaves in the winter. With fewer leaves, less transpiration occurs, enabling trees to conserve water because water is scarce.

Question 62

What does deciduous mean?

Answer 62

Falling off

Question 63

What does the climate in a tropical rain forests allow for?

Answer 63

Enormous variety of species - it is home to more species than an other land biomes combined.

Question 64

Why are estuaries an important natural resource?

Answer 64

Most fish species caught in the United States each year spend part of their lives in estuaries.