Vocabulary
What is a species?
A group of organisms with similar features. They can also breed to make fertile offspring
Natural selection is the process through which living organisms _____ and ______.
adapt and change
Which of the following could not be used to describe a species?
A. A group of organisms sharing unique structural and functional characteristics
B. A group of organisms capable of reproducing with one another to produce viable offspring
C. A group of organisms sharing the same ecological niche
D. A group of organisms that have identical DNA
D
What is variation?
Any difference within individuals of a certain species
________ are inherited, not _______
Genes and traits
What is caused by differences in one's DNA?
A. DNA Variation
B. Environmental Variation
C. Genetic Variation
C
What is environmental variation?
Any differences within an individual belonging to a species that are a result of the environment it resides in.
_____________ wrote a book entitled, "On the Origin of Species," on ________________
Charles Darwin and November 24, 1859
Why is variation important? Pick the best option.
A. It allows species to live on for many generations
B. It allows individuals within a population differ
C. It enables species to adapt to changing environmental conditions
C
What is natural selection? Name an example.
Natural selection is the process through which populations of living organisms adapt and change.
An example of this is the peppered moth or the Galapagos finches
The ___________ islands is where Charles Darwin based his theory on natural selection.
Galapagos
Which of the following is factual?
A. Parents pass on their traits to their offspring through their genes
B. Organisms tend to have to compete for limited resources to survive
C. Organisms that survive while competing for resources are usually identical
D. Natural Selection is the gradual accumulation of advantageous traits in a population over time
A, B and D
An entire species ceases to exist. The term for this is?
Extinction
The Principles of Natural Selection are _________, ____________, ___________ and ___________.
Variation, Heritability, Differential Fitness and Selection
N - normal pigmentation, n - albinism
If one parent is homozygous recessive and the other is heterozygous, what would be the offspring's phenotype.
A. 25% will have normal pigmentation, 75% will have albinism
B. 50% will have normal pigmentation, 50% will have albinism
C. 100% will have normal pigmentation
B