Year 8 SURVIVAL

What is genetic material made of?

• Protein

• Chromosome

• DNA

• Gene

Which of the following is an example of continuous variation?

• Eye color

• Gender

• Hair color

• Hand span

What is the shape of DNA?

• Circular

• Double Helix

• Straight line

• Ladder

How many chromosomes are there in a 'normal human' cell?

• 22 pairs

• 23 pairs

• 24 pairs

• 25 pairs

What is the process by which individuals who are not well suited to their environment die before they can reproduce and pass on their genes?

• Natural selection

• Mutation

• Evolution

• Adaptation

What is the process by which a chemical builds up in a food chain?

• Decomposition

• Respiration

• Photosynthesis

• Bioaccumulation

What is the preserved remains or imprint of an organism that lived in the past called?

• Fossil

• Imprint

• Remains

• Mineral

What is the process by which organisms change over time?

• Adaptation

• Evolution

• Mutation

• Natural selection

What is the term for the variety of life in the world or in a particular habitat or ecosystem?

• Biodiversity

• Ecology

• Environment

• Species

Drag labels to the correct position on the diagram

c

b

a

DNA

Nucleus

Chromosome