What is the genetic material that contains the information for life?
What is DNA?
Yellow beetle and green beetles live in the rainforest canopy. You would expect:
What is the green population will increase and the yellow will decrease?
What is survival of the fittest?
Natural Selection - organisms best adapted to their environment will survive and reproduce
What are homologous structures?
What are bones in different organisms that are similar in shape and structure but server a different purpose.
This indicates a common ancestor
In an arctic environment, which would survive longer: red foxes or white foxes?
White foxes
What is a piece of DNA that contains the information for a trait called?
What is A gene?
What is most likely to happen to moth populations in the picture shown?
Dark moths--hunted easily, dark moths--population decreases.
Does natural selection typically take a long time or a short time?
What is a Loooooooooooooooooooooooooooooooooooooong time?
Due to pollution, a pond becomes darker over time. Which trait variation became more common?
What is dark fish?
What are vestigial structures?
What are structures that remain in modern organisms from ancient relatives that no longer serve a purpose. Ex: Appendix and wisdom teeth
What is a change in a gene that results in a new trait?
What is a mutation?
Evidence of the changes in a species' physical characteristics over long geological periods can best be shown through a study of
What is the fossil record
What is how well an organism is suited for its environment?
It has adaptations that allow it to thrive where it lives!
What is "fitness"?
What word describes a TRAIT that HELPS AN ORGANISM SURVIVE in its environment?
What is ADAPTATION?
A pumpkin farmer want to grow the largest pumpkin possible. He mates his largest pumpkin with his second largest pumpkin and plants the seeds. The next year he mates the pumpkins from these seeds with his largest pumpkins. Eventually, he starts getting very large pumpkins. Is this natural selection or artificial selection?
Artificial selection
A TRAIT that helps an organism to survive and reproduce in its environment
What is Adaptation?
What would happen if the environment changes drastically and no organisms have fitting adaptations?
What is a species could go extinct?
After traveling to the Galapagos Islands, Darwin noticed a lot of variation among beak sizes in Finches. This variation was a result of:
Developing different adaptations in order to survive on particular islands
Can an organism "CHOOSE" to evolve and change?
No, organisms CANNOT CHOOSE to change their genes or traits!
In the context of natural selection, what is fitness?
What is the ability to reproduce
What is a factor or factors that affect natural selection?
What is variation, competition and fitness
What is the "goal" of natural selection for a species?
What is "SURVIVE" and "REPRODUCE?"
A bird's developmental stages resemble those of a reptile. This observation is often used to illustrate the probable common ancestry of these organisms through the study of
What is comparative embryology
Iguanas on the mainland have smaller, sharper claws compared to the larger, meaty claws found on island iguanas. Why did the two populations of iguanas develop claws with different physical traits?
What is the mainland iguanas and the island iguanas adapted claws that better suited their environment which allowed them to eat and survive