Grade 7 Biodiversity Practice

What is natural selection?

• The process by which organisms better adapted to their environment tend to survive and produce more offspring

• The random selection of organisms for study

• The artificial breeding of plants

• The migration of birds

What do all organisms need to survive?

• Space, food, water, and access to resources

• Shelter, warmth, and companionship

• Light, air, and soil

• Movement, rest, and play

Sort the abiotic from the biotic.

Groups:

(a) Abiotic

,

(b) Biotic

• Rock

• 
• Glass

• Dead Tree

• 
• Deer

• Sunflower

• Bacteria

• Human

• Water

What is the Amazon Rainforest known for?

• Being the driest place on Earth

• Having the most biodiversity in the world

• Having the largest desert

• Being the coldest region

​ (a)   is the father of ​ (b)   by ​ (c)  

• Charles Darwin
• evolution
• natural selection
• Tony Stark
• Charlie Brown
• space
• fitness 
• living
• abiotic
• biotic

Wildlife can survive easier in climates near the equator.

• True

• False

Half of the world’s species live in tropical rainforests.

• True

• False

Why is genetic variation important for the survival of different species?

Select the three correct types of adaptations in biology.

• Behavioural

• Physiological

• Camouflage

• Structural

• Fitness

What is the correct definition of an ecosystem?

• Abiotic parts of an ecosystem.

• A network of interactions among living organisms and non-living things in their environment.

• Anything that is alive, which includes plants, animals, and microbes.

• Biotic parts of an ecosystem.