science form 2 2.3

What is an example of mutualism?

• A bee pollinating a flower

• A lion hunting a deer

• A parasite feeding on a host

• A snake shedding its skin

2. How do cacti store water?

• In their flowers

• In their roots

• In their stems

• In their leaves

Why is camouflage important for animals?

• It helps them find more food

• It helps them attract mates

• It helps them hide from predators
  

• It makes them look beautiful

What happens when an invasive species enters an ecosystem?

• It competes with native species

• It improves biodiversity

• It has no effect on the ecosystem

• It helps native species grow

How do Arctic foxes survive in cold climates?

• They hibernate in winter

• They grow thick fur

• They store water in their bodies

• They migrate to warmer places

What is the difference between commensalism and parasitism?

• Commensalism benefits both, parasitism harms one

• Parasitism benefits both, commensalism harms one

• Commensalism and parasitism are the same

• Parasitism benefits neither species

How does deforestation impact animal populations?

• It provides more food

• It increases their population

• It destroys their habitats

• It helps them adapt better

Why do some birds have different beak shapes?

• To look more attractive

• To adapt to different food sources

• to fly faster

• to scare predators

What factors affect population size in an ecosystem?

• Food supply, predation, and climate

• The number of trees only

• The presence of water only

• The number of predators only

What might happen if a top predator is removed from an ecosystem?

• The prey population may increase rapidly

• The ecosystem will remain the same

• The food chain will not be affected

• Other predators will disappear immediately