Vocab
A group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group is...
...a species.
Different populations of the same species that live in different areas can have different traits for that area and still be the same species.
True!
The number of individuals with each trait in a population can _____ over time.
The number of individuals with each trait in a population can CHANGE over time.
If the tree bark where peppered moths live turns from mostly black to mostly white, how would the color of the peppered moths most likely change and why?
They would become more white over time in order to blend in with the trees in their environment. This would make them less likely to be seen and eaten by predators.
What is Ms. Adams' favorite color???
It's teal of course!
A trait that makes it less likely that an individual will survive in a specific environment...
...is called a nonadaptive trait.
Adaptive traits may change over many generations.
Explain your answer.
Adaptive traits may change over time if the environment also changes. If the environment changes over time then the traits that were originally adaptive might no longer be adaptive. Other traits might become adaptive.
Whether or not a trait is adaptive depends on the ...
environment.
In an environment where there are mostly fruits with hard seeds, birds with which beak type will most likely die out, birds with thin delicate beaks or birds with wider, stronger beaks?
The birds with thin delicate beaks will likely die out first since their beak shape and strength and not well-adapted to the environment they live in.
What is the abbreviated name of the toxin that rough skinned newt carry?
It's called TTX poison.
Any difference in traits between individual organisms is called...
...variation.
THROWBACK THREE HUNDRED! How much do you remember about previous units???
What is the term for the whole range of all types of light?
It's called the electromagnetic spectrum, and it includes not only visible light, but also microwaves, radio waves, infrared waves, and ultraviolet waves.
The environment is orange. One wildcat is orange, and another wildcat is blue. There are predators. Which one is most likely to die first? Why?
The blue wildcat will die first because that one will not be able to camouflage into the environment and not be seen by a predator.
THROWBACK THREE HUNDRED! How much do you remember about previous units???
What is the process that pushes one tectonic plate under another due to differences in density?
This amazing process is SUBDUCTION!!!
The number of individuals with each trait in a population is called...
...distribution.
Genes are instructions for ...
making different protein molecules.
One wild cat is blue, and another wildcat is orange. The environment is orange. What's missing for natural selection based on color to occur?
Explain your answer.
In order for natural selection to occur, predators would be needed to drive the change. Without predators, color is neither an adaptive nor a nonadaptive trait.
*This is a very simplified scenario. In nature this answer would be much more complicated.
What is the natural predator of the rough-skinned newt?
Their natural predator is the garter snake.
A random change to a gene or DNA that can result in a new trait is called ...
...a mutation.
If a trait is present in the starting generation, it will always be present as time goes on. True or False? Why?
A trait will only continue to be present if it is adaptive. If the trait is nonadaptive, the individuals with that trait will likely die out and be replaced with individuals with adaptive traits for that environment.
A population can be described by the ___s present and the number of individuals who have each ___
**one word for both blanks
A population can be described by the TRAITs present and the number of individuals who have each TRAIT.
One wildcat is red, and another wildcat is blue. If they mate and produce an offspring, can that offspring be purple?
Explain your answer.
The answer is no. If neither of the parents is purple the offspring won't be purple. Multiple offspring might have different combinations of traits found in either or both parents.
The guy who is disputed to have discovered natural selection alongside Darwin...
is Alfred Russel Wallace.