Evolution & Natural Selection

Evolution & Natural Selection

Multiple Choice

The formation of new and distinct species in the course of evolution

• artificial selection

• speciation

• breeding

• non-random mating

Multiple Choice

Who is credited with the discovery of Natural Selection?

• Charles Darwin

• Charles Xavier

• Charles Dickens

What Makes Evolution Happen?

• Competition

• Specialization

• Variation

• Selection

What Provides Evidence for Evolution

• Fossils - Depth and Structures

• Molecular Biology

• Comparative Anatomy

• Species locations

Natural Selection

Specialization for Environments

• 3 turtles of one species

• different specializations for feeding

• How???

Poll

How did the turtles change over time?

• They grew longer necks to get food

• Over years only the ones more equipped to get food survived to reproduce

• A random mutation enabled survival

Selection & Breeding

• Selective breeding means that only the organisms with desirable traits will live to reproduce or be given the opportunity

• Artificial selection is when humans dictate the traits that are desired (dogs, cats, horses, cows and so on)

• Nature does a fantastic job of doing this, but it cannot happen with out genetic diversity.

Multiple Select

Select all answers that influence Evolution of organisms.

• Gene Flow

• Natural Selection

• Genetic Drift

• Aliens