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Understanding Natural Selection

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Questions and Answers

What is the primary source of energy for plants?

Carbon dioxide

Sunlight (correct)

Water

Soil

What is the main function of phospholipids?

To create carbohydrates

To store energy

To regulate body temperature

To create membranes (correct)

What is the difference between saturated and unsaturated lipids?

Their solubility in water

The number of hydrogens attached to the carbon chain (correct)

Their ability to store energy

Their ability to conduct electricity

What determines the shape of an amino acid?

The R group Signup and view all the answers

What is the main difference between DNA and RNA?

The type of sugar molecule Signup and view all the answers

What is the result of a protein with a hydrophilic and hydrophobic region entering water?

The hydrophobic region is on the inside and the hydrophilic region is on the outside Signup and view all the answers

What is the condition that determines which individuals get to survive?

Selection Signup and view all the answers

What component, when combined with variation and heredity, leads to evolution by natural selection?

Selection Signup and view all the answers

Which type of reproduction involves organisms choosing mates?

Sexual reproduction Signup and view all the answers

What was the observation made by Darwin about the finches on the Galapagos Islands?

Different finches had different beak sizes Signup and view all the answers

Which organisms do not require a mate for reproduction?

Asexual organisms Signup and view all the answers

What term is used to describe organisms with the highest chance to reproduce?

Fittest Signup and view all the answers