Organism Migration and Dormancy Concepts

The video discusses how organisms adapt to environmental changes through migration, suspension, hibernation, seed dormancy, and estivation. Migration involves temporary relocation to favorable conditions. Suspension is when organisms become inactive to conserve energy. Hibernation is a deep sleep during unfavorable weather. Seed dormancy prevents germination in adverse conditions. Estivation is when fishes become inactive during hot or dry periods.

What is the primary reason organisms migrate?

• To find new habitats permanently

• To escape predators

• To temporarily move to favorable environments

• To find new food sources

Which of the following is an example of migration?

• A bird flying south for the winter

• A fish entering estivation

• A bear hibernating in winter

• A seed entering dormancy

What does the term 'suspend' mean in the context of organisms?

• To change internal environment

• To become inactive during unfavorable conditions

• To increase metabolic activity

• To permanently relocate

Which of the following is NOT a form of suspension?

• Dormancy

• Estivation

• Migration

• Hibernation

What happens to an organism's body during hibernation?

• Decreased energy expenditure

• Increased food intake

• Increased metabolic rate

• Increased body temperature

Which animal is known to hibernate?

• Dolphin

• Bear

• Eagle

• Shark

What is seed dormancy primarily used for?

• To enhance seed growth

• To attract pollinators

• To increase seed size

• To prevent germination during unfavorable conditions

What is the purpose of a seed coat in physical dormancy?

• To protect the seed from predators

• To increase seed weight

• To prevent germination until conditions are favorable

• To enhance photosynthesis

What is estivation?

• A period of increased activity

• A form of migration

• A period of inactivity during hot or dry conditions

• A type of seed dormancy

Which of the following organisms is likely to enter estivation?

• Penguin

• Desert tortoise

• Arctic fox

• Polar bear