Std. 12

Protective Adaptations

Mimicry

Beak Types

Migration

Camouflage

Hibernation/Estivation

• Mimicry: When an organism looks like or copies something that other organisms either want to avoid or are attracted to

1. Aggressive mimicry: when animals copy something to lure prey

2. Batesian mimicry: when a harmless organism looks like a harmful one• Example: milk snake looks like a coral snake

3. Mullerian mimicry: when harmful organisms look alike• Example: yellow with black coloration of wasps, African

honeybees, and yellowjackets

• Camouflage: when an animal can blend in with its environment– Draw & color 2 examples (grasshoppers, stick insects, etc.)

• Beak Type: different beak types allow different species to have different diets– Draw & color 3 different beak types & explain what they are

• Migration: the movement of animals from one region or climate to another for a specific period of time to find warmer climates with more plentiful food supplies- Draw & color 3 examples of animals that hibernate

- Birds, bats, whales, fish, elk, butterflies

• Hibernation: during the winter, animals go through a resting state when their entire metabolism slows down including digestion, respiration, and heart rate

• Estivation: a resting state similar to hibernation that animals use in hot weather; it can be daily or longer– Draw & color 2 examples of animals that hibernate • Examples: bears, ground squirrels, snakes, rabbits– Draw & color 2 examples of animals that estivate• Examples: snakes, lizards, iguanas, desert tortoise,

salamanders, frogs