Vocabulary
What is Variation?
Any difference in traits between individuals; More options in a population
What is Variation in a histogram?
the amount of differences in traits for an organism
What is an adaptive trait?
a trait that makes it more likely for an individual will survive
What is an enviorenment?
Everything (living and nonliving) that surrounds an organism
Can an organism change its traits to survive?
No, no one can just change
What is an enviorenment?
Everything (living and nonliving) that surrounds an organism
What is distribution in a histogram?
Trend, number of individuals in each trait in a population
What is a non adaptive trait?
Trait that makes it less likely for an individual organism to sirvive.
How does environment influence survival?
It influences how organisms live and what what they have to survive and also what threats are around.
In a cold environment, there are organisms that do not have much, if any, fur. How will the population change over time?
They most likely will not survive
What is a feature?
A characteristic that everyone in a species has
In a histogram, the numbers you get go on what side of the histogram?
The left side (Y Axis)
Where do genes that determine an individuals traits come from?
Their parents
What are different aspects of the environment that play a role in natural selection?
temperature, water, food, predators, disease, rainfall, natural disasters, color.
In this environment, it is very grassy, green and brown are a common color. There are no predators. There are Green, red, and blue iguanas. What organism has the best chance of survival?
All of them, there are no threats to them, their traits don't help them sirvive?
What is a trait?
Specific characteristics; Differences of traits
How does a histogram help study natural selection?
To visually represent distribution of if traits in a population. See where trends are going
Is it good to have variation in a population?
Yes, more variety means more likelihood of survival for a population
If an organism has an adaptive trait, will they 100% survive?
True or False
Most humans have 21 chromosomes?
False,
Most humans have 46 chromosomes, and 23 pairs
What is a non-adaptive trait?
Trait that makes it less likely for the organism to survive; Trait that does not help them to survive
In a histogram, where do the traits you obtain go on the graph?
The bottom (X axis)
What is population?
a group of the same type of organisms living in the same area
If an organism has an adaptive trait, will it pass it down to thier offspring?
Not 100% but there's a chance
What is natural selection?
If you have an adaptive trait you will survive; How distribution of traits change over time