Natural Selection
Differences in genes across individuals in a population
Variation
The adaptation seen within the peppered moth population during the Industrial Revolution
What is the environmental factor that causes natural selection for white coats in polar bears?
The Arctic
Traits that help organisms survive and reproduce
Adaptations
The genetic material in organisms
DNA
A type of extinction threat where there are limited resources and multiple individuals need to fight for them
Competition
The adaptation seen in moles, which allows them to find prey more efficiently
Finger-like projections around the nose
The extinction threat of the white bark pine
Climate change
When two or more populations within a species no longer successfully reproduce
Speciation
A segment of DNA that holds instructions for inherited traits
Gene
This needs to happen in order for two groups to turn into two different species
Reproductive isolation
An adaptation seen in owls that helps them catch prey
Large eyes, large talons, silent flight
A somewhat new cause of extinctions
Human activity
This process explains how organisms with traits that help them survive and reproduce are more likely to pass those traits to the next generation, leading to changes in the species over time.
Natural Selection
Repeating chemical units that come together to form DNA. Identified by the letters A, T, C, and G
Nucleotides
The dominant trait can be expressed with just one allele in the genotype. Which trait needs two alleles to be expressed?
Recessive trait
An adaptation of a rafflesia flower
The smell of rotting flesh
A solution conservationists are using to attempt to save the endangered Canadian Lynx
Wildlife corridor
A measurement of how common a certain allele is in a population
Allele frequency
When the base-pairs in DNA change & cause changes in the genes. This can be beneficial or harmful.
Mutations
The word for a combination of inherited alleles seen in the genes
Genotype
The structure on the feather that allows an owl to fly silently
Comb or finger like edges
A source of genetic change, other than mutation
Reproduction
The molecule proteins are made up of
Amino acids
Mutations that occur in body cells cannot be passed on to offspring. Which cells can pass on mutations to offspring?
Reproductive cells