A trait that helps an organism survive in its environment.
What is an adaptation?
Plants use this energy source to make food.
What is sunlight?
The largest organ in the human body.
What is the skin?
Organisms so small they usually need a microscope to be seen.
What are microorganisms?
Changes in species over long periods of time.
What is evolution?
A polar bear's thick fur is an example of this type of adaptation.
What is a structural adaptation?
The green pigment that captures sunlight.
What is chlorophyll?
This organ pumps blood through the body.
What is the heart?
This type of microorganism can make yogurt and cheese.
What are bacteria?
Preserved remains or traces of ancient organisms.
What are fossils?
This adaptation allows some animals to blend into their surroundings.
What is camouflage?
This gas is taken in during photosynthesis.
What is carbon dioxide?
The body's control center.
What is the brain?
These microorganisms can cause illnesses like the flu.
What are viruses?
The process by which organisms best suited to their environment survive and reproduce.
What is natural selection?
When one organism looks like another to avoid predators.
What is mimicry?
This process releases energy from food in cells.
What is cellular respiration?
These vessels carry blood away from the heart.
What are arteries?
This kingdom includes yeasts and molds.
What are fungi?
The scientist most associated with the theory of evolution by natural selection.
Who is Charles Darwin?
Birds flying south for the winter is an example of this behavior.
What is migration?
This gas is released during photosynthesis.
What is oxygen?
This body system protects the body from disease-causing organisms.
What is the immune system?
Scientists use this tool to view most microorganisms.
What is a microscope?
Structures that have similar anatomy because of common ancestry.
What are homologous structures?