Biological Variation and Evolution
What is the term for differences in physical traits among individuals of a species due to genetic variation?
Variation
Rising global temperatures cause this phenomenon, leading to coastal flooding.
Sea level rise
An asteroid impact is believed to have caused the extinction of these prehistoric reptiles.
Dinosaurs
These units of heredity are passed from parents to offspring and determine traits.
Genes
This scientist proposed the theory of natural selection, explaining how species evolve over time.
Charles Darwin
This weather event, characterized by a lack of precipitation, can harm agriculture and water supply.
Drought
This space object, when large enough, can cause mass extinctions upon impact with Earth.
Asteroid
This process results in differences among individuals of the same species due to genetic mutations and recombination.
Genetic variation
This process occurs when individuals with favorable traits survive and reproduce, passing their traits to the next generation
Natural selection
Name one extreme weather event intensified by climate change.
Hurricane, tornado, or flood
An asteroid impact can send dust and debris into the atmosphere, blocking sunlight and leading to this climate effect.
Global cooling
This principle states that organisms with traits best suited to their environment are more likely to survive and reproduce.
Survival of the fittest
A drastic environmental change may lead to this, the complete disappearance of a species.
Extinction
Greenhouse gases, such as carbon dioxide, contribute to this global crisis.
Climate change
Scientists study these formations left behind by asteroid impacts to learn about past collisions.
Craters
Over many generations, beneficial adaptations accumulate in a population, leading to this long-term process.
Evolution
A species’ ability to adapt to environmental changes depends on this source of genetic diversity.
Mutation
The melting of these polar features is a major contributor to rising sea levels.
Glaciers and ice caps
This metal, found in high concentrations in asteroid impact sites, helped scientists link an asteroid to the extinction of the dinosaurs.
Iridium
The process by which humans selectively breed plants and animals for desired traits is called this.
Selective Breeding