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Adaptations

QuestionAnswer
What conditions could cause a species to evolve to have different traits? Types of food available, climate and weather, presence of predators.
What is camouflage? A structural adaptation where an organism is colored in a way that it blends in with it's environment.
Why might there be similarities between different species? They may eat similar food or live in similar habitats.
What can we conclude if we find fossils of seashells in a desert? The desert was once covered by oceans.
What can homologous structures tell us? Organisms with homologous structures are related, organisms with homologous structures share a common ancestor, we can infer relationships based on homologous structures.
What is a genetic mutation? A change that takes place in the DNA of an organism during development that results in variations.
What is natural selection? When organisms who are better suited to their habitats survive, reproduce and pass their traits on to their offspring.
What is a structural adaptation? An adaptations that involves the body parts of an organism.
True or false: "Survival of the fittest" means only the strongest organisms will survive. False: It means organisms that are best suited to their environment will survive.
What is an adaptation? A genetic variation that is beneficial to an organism's survival
What is variation? A genetic difference withing a species that usually results on physical variation.
True or false: mutations can be harmful, helpful or neutral (no effect) to an organism True
What pieces of evidence have scientists use to support the theory of evolution? Homologous structures, Carbon dating, genetic (DNA) similarities
Where do we find the oldest fossils in the fossil record? In the deeper layers of soil.
Created by: smorrow801
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