Evolution and Natural Selection Concepts

The video explains the concept of evolution through natural selection, using giraffes as an example to illustrate adaptation and variation. It discusses how different evolutionary paths can lead to diverse species like giraffes and okapis. The video also highlights rapid evolution in Caribbean lizards due to environmental changes and emphasizes the impact of human actions on species extinction and habitat destruction. It concludes with a call to preserve natural habitats and address climate change.

Who were the two scientists credited with the idea of evolution through natural selection?

• Isaac Newton and Albert Einstein

• Charles Darwin and Alfred Russell Wallace

• Marie Curie and Nikola Tesla

• Gregor Mendel and Louis Pasteur

What is the term used to describe the differences among individuals of the same species?

• Adaptation

• Mutation

• Selection

• Variation

How do giraffes with longer necks have an advantage in their environment?

• They can camouflage better

• They can run faster

• They can reach higher into trees for food

• They can swim better

What is the common ancestor of giraffes and okapis known for?

• Having a long neck

• Living in water

• Having short necks

• Being a carnivore

What environmental factor led to the rapid evolution of lizards on Caribbean islands?

• Volcanic eruption

• Earthquake

• Hurricane

• Drought

What physical traits helped the lizards survive the hurricane?

• Thicker skin and sharper claws

• Brighter colors and larger bodies

• Larger toe pads and shorter hind limbs

• Longer tails and larger eyes

What is one major consequence of rapid environmental changes caused by humans?

• Increased biodiversity

• More natural habitats

• Slower evolution

• Species extinction

What is a key action humans must take to preserve the natural world?

• Preserve natural habitats

• Increase urban development

• Expand agricultural lands

• Reduce wildlife populations

What is the primary reason for the increase in hurricane frequency and intensity?

• Volcanic activity

• Human-caused climate change

• Natural climate cycles

• Solar flares

What is the process called when a species evolves into a new species over time?

• Adaptation

• Migration

• Mutation

• Speciation