Vocabulary
This term refers to the expansion of cities, or development of cities
What is urbanization
Regions of DNA that code for proteins/traits
What are genes
This term refers to differences in traits
What is genetic variation (or variation)
In order for natural selection to occur, we must have ____________ which are differences in traits
What is variation
What does the acronym C-E-R stand for?
What is claim, evidence, and reasoning
This term refers to breaking up land into smaller parts
What is fragmentation
Complete this expression: DNA --> ______ --> ______
What is DNA --> RNA --> Proteins
These random changes in DNA create new alleles
What are mutations
This is the mechanism by which better adapted organisms survive to produce a greater number of viable offspring.
What is natural selection
This part of the C-E-R is a single sentence response to a research question.
What is a claim
This term refers to attributes in the environment that determines what traits are good for survival and what traits are harmful to survival
What is selection pressure
TRUE or FALSE: All cells that make up an organism contain the same DNA.
What is TRUE
____________, mutation, and environmental factors are all sources of genetic variation in a population.
What is meiosis
Poison released in a city to limit the rat population is an example of this, people are another example of this
What is selection pressure
This portion of the CER is where you explain why and how using scientific principles
What is reasoning
This term refers to how many different species there are in an area, and how much genetic difference there is within a population
What is biodiversity
In DNA, base A pairs with what other base?
What is base T
In the 1950’s, babies born to mothers who took the sedative thalidomide during pregnancy had birth defects. This is an example of what source of variation?
What is environmental factors
When traits are good for survival, these traits are ______________, meaning passed from parent to offspring through reproduction
What is inherited
According to the map, we see the release of carbon in the atmosphere has increased over the last 20 years. Additionally, temperatures have increased over the years. This is an example of _______ in a CER
What is evidence
This term refers to a variable that is measured in response to changes in something, it is the EFFECT
What is the dependent variable
This term explains why some genes are turned on or off, and that genes which are turned on produce proteins
What is gene expression (will also accept cell differentiation)
A cheetah with a striped coat was born to two parents who have spotted coats. This is an example of which source of variation?
What is meiosis (will accept genetic factors)
This term refers to the ability to survive and reproduce
What is fitness
What are the three organisms we used to learn about natural selection in unit 3A
What are hawksbeard (dandelion), rats, and juncos