Vocabulary
A characteristic passed from parent to offspring.
What is a trait?
A chart or diagram used to predict inherited traits.
What is a Punnett Square?
An adaptation that helps organisms blend into their surroundings.
What is camouflage?
What provides evidence that organisms changed over time.
What are fossils?
A group of the same species living in one area.
What is a population?
A change in an organism’s DNA.
What is a mutation?
A trait that masks another trait.
What is a dominant trait?
Why might polar animals develop thick fur?
What is to survive cold temperatures?
What does similar bone structures in different animals suggest about the past?
What is a common ancestor?
When a species completely dies out. (Dinosaurs)
What is extinction?
A trait that helps an organism survive and reproduce.
What is an adaptation?
The passing of traits from parents to offspring.
What is inheritance?
When resources are limited, organisms must do this for survival.
What is compete?
Over many generations, populations change through this process.
What is evolution?
Humans choosing organisms with desired traits to reproduce.
What is selective breeding?
The process where organisms with helpful traits become more common over time.
What is natural selection?
The type of reproduction that involves two parents.
What is sexual reproduction?
Why are bird with stronger beaks more likely to survive during droughts?
What is they can access food more easily?
Helpful traits become more common because organisms survive and do this.
What is reproduce?
Changing DNA using science to create desired traits.
What is genetic engineering?
Preserved remains or traces of ancient organisms.
What are fossils?
In rabbits, black fur (B) is dominant to white fur (b). A rabbit with genotype Bb is crossed with a rabbit with genotype bb.
Create the Punnett square and determine the probability of offspring with white fur and use the proper vocabulary of the genotypes.
B b
b Bb bb
b Bb bb
50% Heterozygous Bb = black fur
50% Homozygous bb = white fur
Probability of white fur (bb) = 50%
If a habitat becomes snow year-round, which fur color may become more common?
What is white fur?
This determines whether a trait is helpful or harmful.
What is the environment?
This type of reproduction creates genetically identical offspring. (One parent)
What is asexual reproduction?