Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Copyright © Houghton Mifflin Harcourt Publishing Company 1

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Florida Benchmark SC.5.L.17.1 Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments such as life cycles variations, animal behaviors and physical characteristics. Copyright © Houghton Mifflin Harcourt Publishing Company 2

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Life in Lakes and Ponds Water on Earth can be a salty or freshwater habitat. Lakes and ponds are wide bodies of water that do not flow very much. Plants grow near the shore. Animals, including ducks, snails, and fish, eat water plants. Copyright © Houghton Mifflin Harcourt Publishing Company 3

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Life in Lakes and Ponds In the open-water zone, floating plants called algae can grow. The deep-water zone can contain fish, worms, and bacteria. There is no sunlight for plants to use. Snapping turtles, water lilies, and catfish are adapted to life in lakes and ponds. Copyright © Houghton Mifflin Harcourt Publishing Company 4

Go With the Flow Water in rivers and streams is always moving. Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Go With the Flow Water in rivers and streams is always moving. The faster the water moves, the harder it is for living things to make a home. Mosses, insects, fish, river otters, tadpoles, and green algae live in or near rivers and streams. Copyright © Houghton Mifflin Harcourt Publishing Company 5

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Soggy Bogs A wetland is an area of land covered by a shallow layer of water for most of the year. Bogs, swamps, and marshes are three types of wetlands. Marshes are wetlands without trees. Copyright © Houghton Mifflin Harcourt Publishing Company 6

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Soggy Bogs Wetlands are important habitats. They are home to many different kinds of plants and animals. Carnivorous plants, insects, snakes, alligators, frogs, and giant water rodents all live in wetland areas. Copyright © Houghton Mifflin Harcourt Publishing Company 7

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Soggy Bogs Why is the webbed bird foot in the image below a good adaptation for living in a wetland? Copyright © Houghton Mifflin Harcourt Publishing Company 8

Between a Rock and a Hard Wave Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Between a Rock and a Hard Wave The place where the ocean meets the coast is called the intertidal zone. Tides cover the intertidal zone with salt water for a part of the day. When the tide goes out, the intertidal zone is exposed to the air. Copyright © Houghton Mifflin Harcourt Publishing Company 9

Between a Rock and a Hard Wave Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Between a Rock and a Hard Wave Living things in the intertidal zone must have adaptations to prevent being crushed, washed away, or dried out. Seaweed, sea stars and sea urchins, barnacles, clams and oysters, tube worms, and anemones live in the intertidal zone. Copyright © Houghton Mifflin Harcourt Publishing Company 10

Between a Rock and a Hard Wave Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Between a Rock and a Hard Wave What adaptations allow a clam to survive in the intertidal zone? Copyright © Houghton Mifflin Harcourt Publishing Company 11

Out to Sea The ocean is the largest habitat on Earth. Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Out to Sea The ocean is the largest habitat on Earth. Light reaches the top zone of the ocean, known as the photic zone. The aphotic zone is very dark and cold. Copyright © Houghton Mifflin Harcourt Publishing Company 12

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Out to Sea The ocean floor is covered with mountains, valleys, and canyons. There are undersea volcanoes and hot springs called vents. Common plants and animals are dolphins, sharks, tube worms, jellyfish, and seaweed. Copyright © Houghton Mifflin Harcourt Publishing Company 13

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Oceans in Peril Coral bleaching occurs when a coral reef loses its color. Rising water temperatures and ocean pollution may be causes for coral bleaching. Taking too many fish from the ocean can cause other animals to become extinct. Copyright © Houghton Mifflin Harcourt Publishing Company 14

Unit 10 Lesson 4 What Are Some Adaptations to Life in Water? Oceans in Peril Chemicals from trash dumped in the ocean can be harmful to sea life. Living things can get caught in the trash. Ocean currents can carry trash from far away places. Copyright © Houghton Mifflin Harcourt Publishing Company 15