Biodiversity worksheet comparing different habitats and their plant and animal observations.

Here are the observations for plant and animal diversity in each habitat to help you complete your worksheet.

Tundra
* Plant Observations: Plants here are very short and grow close to the ground to hide from the cold wind. You will mostly see mosses, lichens, and small shrubs. There are no tall trees because the ground is frozen (permafrost).
* Animal Observations: Animals have thick fur or feathers to stay warm. Many animals, like caribou or musk oxen, have large bodies to keep heat in. Some birds fly away during the winter. Common animals include polar bears, arctic foxes, and snowy owls.

Desert
* Plant Observations: Plants are spread far apart so they don't fight for water. Many plants, like cacti, have spines instead of leaves to save water. They often have thick stems to store rainwater when it falls.
* Animal Observations: Many animals are active at night (nocturnal) to avoid the hot sun. They often have light-colored skin to reflect heat. Animals like camels can go a long time without drinking water. Reptiles like lizards and snakes are common here.

Aquatic (Ocean/Water)
* Plant Observations: In the ocean, you find algae and seaweed instead of regular land plants. Near the shore, there might be seagrass. These plants float or attach to rocks because they don't need stiff stems to stand up; the water holds them up.
* Animal Observations: Animals here have special ways to move in water, like fins, flippers, or streamlined bodies. Fish breathe using gills to get oxygen from the water. You can find everything from tiny plankton to huge whales and sharks.

Forest
* Plant Observations: This habitat has many tall trees that form a "canopy" or roof overhead. Because the trees block the sun, the plants on the forest floor (like ferns and mushrooms) must be able to grow in the shade. There is a lot of greenery and fallen leaves on the ground.
* Animal Observations: There is a high variety of animals. Many animals live in the trees (arboreal), such as monkeys, squirrels, and sloths. Others live on the ground, like deer, bears, and wolves. Birds use the tall trees for nesting.

Grassland
* Plant Observations: The main plants are grasses and wildflowers. There are very few trees because there isn't enough rain for them to grow, or fires burn them down. The roots of the grass are very deep to reach water underground.
* Animal Observations: Many animals here are grazers (herbivores) that eat grass, such as bison, zebras, and antelopes. Because there are no trees to hide in, these animals often live in large herds for protection. Predators like lions or hawks hunt them in the open space.

Wetland
* Plant Observations: Plants here must be able to grow in wet, muddy soil with lots of water. You will see reeds, cattails, and mangroves. Their roots are often exposed above the water to help them breathe.
* Animal Observations: This is a great place for amphibians (like frogs and salamanders) because they need both water and land. There are also many insects, fish, and water birds (like ducks and herons) that wade in the shallow water to catch food.

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Final Answer:
Tundra:
* Plants: Mosses, lichens, low shrubs; no trees due to frozen ground.
* Animals: Thick fur/feathers for warmth (polar bears, arctic foxes); migration in winter.

Desert:
* Plants: Cacti/spines to save water; thick stems for storage; spaced far apart.
* Animals: Nocturnal (active at night); light colors to reflect heat; water conservation (camels, lizards).

Aquatic:
* Plants: Algae, seaweed, seagrass; flexible bodies supported by water.
* Animals: Fins/flippers for swimming; gills for breathing underwater (fish, whales, sharks).

Forest:
* Plants: Tall trees forming a canopy; shade-tolerant plants (ferns) on the floor.
* Animals: Tree-dwellers (monkeys, squirrels) and ground-dwellers (deer, bears); high biodiversity.

Grassland:
* Plants: Grasses and wildflowers; deep roots; few trees.
* Animals: Grazing herds (bison, zebras) for safety; open-space predators (lions, hawks).

Wetland:
* Plants: Reeds, cattails, mangroves; adapted to saturated/muddy soil.
* Animals: Amphibians (frogs), wading birds (herons), fish, and insects.