section 1 terrestrial biomes - amazon s3s3. 1 terrestrial biomes section 2 aquatic ecosystems . ......

Download Section 1 Terrestrial Biomes - Amazon S3s3. 1 Terrestrial Biomes Section 2 Aquatic Ecosystems . ... Section 1 Terrestrial Biomes Chapter 21 ... types of terrestrial ecosystems, known

Post on 17-Apr-2018

215 views

Category:

Documents

3 download

Embed Size (px)

TRANSCRIPT

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Ecosystems Chapter 21

    Table of Contents

    Section 1 Terrestrial Biomes

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Objectives

    Identify the eight major biomes.

    Compare tundra with taiga.

    Compare the different kinds of forests.

    Compare the different kinds of grasslands.

    Describe the adaptations of desert organisms.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    The Major Biomes

    The major types of terrestrial ecosystems, known as

    biomes, are tundra, tropical forest, temperate forest,

    taiga, temperate grassland, savanna, chaparral, and

    desert.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Earths Major Biomes

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Tundra

    Tundra is a cold biome characterized by permafrost

    under the surface of the ground.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Tundra

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Forests

    Tropical Forests

    Tropical forests receive abundant rainfall and

    have stable temperatures.

    They have a greater species richness than any

    other biome.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Tropical Rain Forest

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Forests, continued

    Temperate Forests

    Temperate forests have coniferous trees, which

    bear seeds in cones, or deciduous trees, which

    shed their leaves each year.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Forests, continued

    Temperate Deciduous Forests

    The trees in temperate deciduous forests shed

    all of their leaves in the fall.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Temperate Deciduous Forest

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Forests, continued

    Taiga

    Taiga is cold but is warmer than tundra and

    receives more precipitation.

    Taiga is dominated by coniferous forests.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Taiga

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Grasslands

    Temperate Grasslands

    Temperate grasslands occur in areas with cold

    winters and hot summers.

    They are dominated by grasses and herds of

    grazing animals.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Grasslands, continued

    Savanna

    Savannas are tropical grasslands with alternating

    wet and dry seasons.

    They are dominated by herds of grazing animals.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Savanna

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Grasslands, continued

    Chaparral

    Chaparral is found in coastal regions with warm,

    dry summers and mild winters.

    It is dominated by dense, spiny shrubs.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Grassland

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 1 Terrestrial Biomes

    Chapter 21

    Deserts

    Deserts receive less than 25 cm (9.9 in.) of

    precipitation per year.

    Desert inhabitants have adaptations for conserving

    water.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Desert

    Section 1 Terrestrial Biomes

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Objectives

    Identify the major ocean zones.

    Compare the aphotic zone with the photic zone.

    Compare the neritic zone with the oceanic zone.

    Describe estuaries.

    Compare eutrophic lakes with oligotrophic lakes.

    Explain the significance of gradient in rivers and streams.

    Describe freshwater wetlands.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Ocean Zones

    The photic zone in the ocean receives light, but the

    aphotic zone does not.

    Other zones of the ocean are defined based on their

    relative locations.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Ocean Zones, continued

    The Intertidal Zone

    In the intertidal zone, organisms must be able to

    tolerate drying and pounding by waves.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Intertidal Zone

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Ocean Zones, continued

    The Neritic Zone

    The neritic zone receives nutrients from the

    bottom of the ocean and from land. It is the

    oceans richest zone in terms of the number of

    species and individuals.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Neritic Zone

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Ocean Zones, continued

    The Oceanic Zone

    Production in the oceanic zone is limited by a

    shortage of nutrients.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Oceanic Zone

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Ocean Zones, continued

    Estuaries

    Estuaries are very productive areas where rivers

    and streams flow into the sea.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Freshwater Zones

    Lakes and Ponds

    Oligotrophic lakes are clear and lacking in

    nutrients.

    Eutrophic lakes are rich in nutrients and are often

    murky.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Three Lake Zones

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Freshwater Zones, continued

    Rivers and Streams

    Rivers and streams are bodies of water that flow

    down an elevation gradient within a watershed.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Section 2 Aquatic Ecosystems

    Chapter 21

    Freshwater Zones, continued

    Freshwater Wetlands

    Freshwater wetlands are areas of land, such as

    marshes and swamps, that are covered with fresh

    water for at least part of each year.

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Chapter 21

    Freshwater Biomes

    Section 2 Aquatic Ecosystems

  • Copyright by Holt, Rinehart and Winston. All rights reserved.

    Resources Chapter menu

    Multiple Choice

    1. Why are estuaries more productive than most other

    biomes?

Recommended

View more >