Evolution

Front

What do scientists consider the small, non-functional eyes of cave-dwelling salamanders to be an example of?

Back

a vestigial organ

Front

Which process results in greater genetic diversity in offspring?

Back

recombination of DNA

Front

According to the Theory of Evolution by natural selection, which of the following is true?

• genetic traits that aid evolution are not passed onto offspring
• variation does not exist between members of the same species
• no more offspring are born into a population than can survive
• populations will change over time to better fit their environment

Back

populations will change over time to better fit their environment

Front

The same kinds of structures/limbs that grow in structurally different patterns in different organisms (e.g., penguin and fish fins) are termed as ___?

Back

analogous structures

Front

Speciation of Kaibab and Abert squirrels due to:

Back

are geographically separated

Front

Genetic variation can aid in the survival of species when the environment changes. Which organism has a genetic variation that could improve survival chances over time? Options: an ant that is resistant to pesticide, a wasp that is infected with parasites, a cactus that has no spines, a mouse that has learned to avoid mousetraps.

Back

an ant that is resistant to pesticide

Front

As creatures become adapted to a particular environment, natural selection can cause a decrease in genetic diversity throughout the population. This type of natural selection is:

Back

stabilizing selection

Front

Importance of similar amino acid sequencing of a protein in different organisms?

Back

Fewer differences in the amino acid sequencing of a protein show a greater evolutionary relatedness.

Front

Adaptive radiation can be characterized by ___?

Back

multiple species rapidly arising - from a single common ancestor

Front

The total number of different alleles (genes) present in a population is the ___. Options: genotype, phenotype, gene pool, gene flow.

Back

gene pool