2 nd 6 Weeks 3 Week District Test Review  Power Point by: Katherine Pease 7 th Grade science th Grade science 2010

What are tundra and desert examples of? Correct Answer: B - Biomes

What is a hot, dry biome called?  Correct Answer: A - dessert A - dessert

Which biome contains mostly frozen soil called permafrost?  Correct Answer: C - Tundra

Give at least one reason why many animals that live in the desert are able to survive without directly drinking water.

Answer is…  Desert animals get water from the plants they eat.

Describe the Taiga and explain what organisms are able to survive there.  Cold, High latitudes (mountains)  Coniferous Forest  Little Rainfall  Rain deer, Mice Snowshoe rabbits Snowshoe rabbits Wolverines Wolverines  Adaptations: Thick fur, color change with seasons Thick fur, color change with seasons Hibernation Hibernation Migration Migration

Describe the deciduous forest and explain what organisms are able to survive there.  Change of seasons  Cool winters, warm summers  Moderate rainfall  Animals: deer, birds, rabbits, squirrels, insects, small mammals  Plants: broad leaf trees, shrubs, birch, bushes  Adaptations: Hibernation Hibernation Migration Migration Food storage Food storage

Describe the desert and explain what organisms are able to survive there.  Very hot in day / cold at night, dry climate, sand, platues, mesa  Little to no rainfall  Animals: snakes, lizards, coyotes, jackrabbits, road runners, insects, birds  Plants: cactus, tumble weeds, junipers, low shrubs  Adaptation: Dry, rough skin Dry, rough skin Water storage Water storage Nocturnal Nocturnal Eat plants to consume water Eat plants to consume water

Why would a cactus be unable to live in a tropical rainforest?  Stores to much water, would drown  Needs sandy soil  Not able to get enough sun due to canopy

Which biome has the most biodiversity?  Rainforest  Biodiversity is that there is a large number of different types of organisms in an area.

Why do Monarch butterflies migrate during season changes?  Food source  Weather change

How does hibernation help organisms to survive?  To avoid the sever cold of winter  To conserve energy during limited food supply

How does migration help organisms to survive?  To avoid starvation due to limited food  Avoid undesirable climate  Instinctive

How do external features help organisms to survive?  Structural adaptations due to climate, locomotion, protection, acquiring food

How does behavior help organisms to survive?  Hibernation  Migration  Protection from enemies  Protection of the young  Mating rituals  Food gathering techniques

How does physiology help organisms survive?  Relationship of body part to how it helps the individual survive in its environment  Example: Animals: shape of beaks, fish gills, shape of feet Animals: shape of beaks, fish gills, shape of feet Plants: spikes on cactus, broad leaves in rainforest Plants: spikes on cactus, broad leaves in rainforest

What adaptations enable birds to fly?  Hollow bones  Feathers  Stream line body

How would birds be different if their bones make-up were similar to humans?  Bones would be solid, dense Unable to get off of ground due to weight Unable to get off of ground due to weight

What enables fish to live underwater?  Gills filtrate water for oxygen  Streamline body  Mucus on skin to repel water  Fins for locomotion

What are the 5 main niches in any habitat?  Producer (plants)  Predators (Hunter)  Prey (Hunted)  Consumer (eats other for energy)  Decomposer (breaks down dead organisms)

What are the main factors in any microhabitat / small ecosystem?  Type of habitat  Climate (temperature and rainfall)  Type of Animals  Type of plants

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