KEY CONCEPTS
A __________ can be described by the traits present and by the number of individuals who have each trait.
population
A trait that makes it more likely that an individual will survive in a specific environment
Adaptive trait
a specific form of a gene that provides instructions for making a particular protein molecule
gene version
to stay alive
survive
an animal that hunts and kills other animals for food
predator
The number of individuals with ____ ____ in a population can change over time.
each trait
A related organism from a previous generation
ancestor
a group of individuals born and living at about the same time
generation
a specific characteristic of an individual organism
trait
Who was the worst predator?
Malcom
Over many generations, individuals with _____ traits become more common in a population, while individuals with _____ traits become less common.
adaptive
non-adaptive
the number of individuals with each trait in a population
distribution
to receive genes from a parent
inherit
any difference in traits between individual organisms
variation
Who was the best predator?
Caleb
The ____ that exist in a population determine which traits can become more common over many generations.
traits
an instruction for making a protein molecule
Gene
a random change to a gene that sometimes results in a new trait
mutation
a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group
species
What was the average kill per predator each hunt?
2
Whether or not a trait is adaptive depends on the _________.
environment
a graph that uses bars to show how characteristics or values are distributed within a group
histogram
the process by which the distribution of traits in a population changes over many generations
natural selection
an animal that is hunted or killed by another animal for food
prey
Biologists analyze data about environmental conditions (the ______) to explain changes in the distribution of traits in populations (the _______).
causes, effects
a way of hiding by looking the same as the background
camouflage
a trait that makes it less likely that an individual will survive in a specific environment
non-adaptive trait
What is the scientific name for the predators?
Junior Highous Obnoxicous
_____ are instructions for making protein molecules and protein molecules determine an organism’s traits.
Genes
an event or process that leads to a result or change
cause
an organism produced as a result of reproduction
offspring
we used _____ ______ to see the probability of the color of the gummy bear offspring
Punnett square
Individuals inherit their genes from their parents. Genes, and therefore ______, in a population are passed down from generation to generation.
traits
a long piece of DNA that contains many genes
chromosome
living things, such as plants, animals, and bacteria
organisms
What was the scientific name for the gummie bears?
Extra credit for the sub species
Ursa Gumbus
Glutinous freeis
Individuals with ______ traits are more likely to live longer and have offspring; individuals with ________ traits are more likely to die without having offspring
adaptive, non-adaptive
a type of molecule that genes and chromosomes are made of
DNA
a group of the same type of organism living in the same area
population
_____ are changes to genes that can lead to changes to protein molecules, which can result in changes to traits
Mutations
a result or change that happens because of an event or process
effect
a type of large molecule that performs important functions inside organisms
protein molecule
Mutations to genes can sometimes introduce ___ _____ into a population.
new traits
everything (living and nonliving) that surrounds an organism
environment
an idea about what might happen that is based on what you already know
prediction
A new trait will only become _____ _____ in a population if it is adaptive.
more common
a characteristic that all members of a species have
feature
something in the environment that affects an individual's chances of surviving
selection pressure