Adaptations Of Plants & Extremophiles

The video discusses how organisms adapt to their environments, focusing on cacti and extremophiles. Cacti have adaptations like spines, thick stems, and extensive roots to survive in dry conditions. Extremophiles thrive in extreme environments, such as high temperatures or anoxic conditions, by developing unique adaptations like specialized enzymes.

How do cacti reduce water loss in arid environments?

• By growing taller

• By replacing leaves with spines

• By absorbing water from the air

• By having large leaves

What is an extremophile?

• An organism that lives in moderate climates

• An organism that thrives in extreme conditions

• A plant that grows in deserts

• A type of cactus

Which of the following environments is NOT typically inhabited by extremophiles?

• High salt levels

• High temperatures

• Moderate temperatures

• High pressures

What adaptation allows some bacteria to survive in hot springs?

• Absorbing oxygen from the air

• Growing spines

• Having a waxy coating

• Producing enzymes that function at high temperatures

Why do extremophiles often have few competitors in their habitats?

• Because they consume all available resources

• Because they are very aggressive

• Because they are the only organisms that can survive there

• Because they reproduce very quickly