Natural Selection and Evolution Insights

What is the primary force driving evolution as discussed in the video?

• Species interbreeding

• Geographical isolation

• Climate change

• Natural selection

Which feature is NOT mentioned as an adaptation of hammerhead sharks?

• Fast swimming capabilities

• Ability to fly

• Streamlined body

• Gills for breathing underwater

Which example is used to illustrate natural selection in birds?

• Claws for climbing

• Fur for warmth

• Gills for swimming

• Feathers for flight

What role do genetic mutations play in evolution?

• They prevent evolution

• They are always harmful

• They always benefit the organism

• They are random and crucial for diversity

How does natural selection influence the reproduction of individuals?

• It decreases genetic diversity

• It does not affect reproduction

• It ensures all individuals reproduce equally

• It favors those with advantageous traits

What is intra-specific competition?

• Competition within a species for survival

• Competition between different species

• Lack of genetic diversity

• Predation from other species

Which characteristic is NOT used as an example of human adaptation in the video?

• Eyesight

• Finding food

• Running speed

• Ability to breathe underwater

What happens to individuals with less advantageous alleles during natural selection?

• They are less likely to reproduce

• They adapt quicker than others

• They become the dominant trait

• They do not experience any change

How does natural selection affect the gene pool over time?

• Eliminates all harmful traits immediately

• Reduces genetic mutations

• Increases the frequency of advantageous traits

• Causes species to become identical

What is the ultimate outcome of natural selection as described in the video?

• Adaptation to the environment

• Decrease in species population

• Uniformity in species traits

• Stagnation of genetic variations