Pre assessment- Grade 7- Week 4- Day 1- Term 2

Lice in head is an example of

• Commensalism

• • Predation

• • Parasite

• • Parasitism

Why do living organisms interact with each other?

• To grow in population

• The maintain balance in an ecosystem

• For saftey

• For food

Which interaction benefits one organism but does not harm or help the other?

• Predation
  

• Competition

• Commensalism

• Mutualism

A place where all living organisms use non-living things for their own benefit?

• Ecosystem
  

• Habitat

• Biosphere

• Biome

What is the main reason for competition between living organisms?

• Sharing food
  

• Fighting for resources like food or water and shelter

• Helping each other find shelter

• Eating each other

Which of the following is NOT an example of an interaction between living organisms?

• A cat chasing a mouse

• A plant using sunlight to make food

• Fish cleaning a shark's skin

• Two deer competing for a mate