Evolution & Natural Selection
_____________ is the change in the frequency of alleles in a population over time.
evolution
What is the biological definition of a species?
Organisms can mate and produce fertile offspring
The first cells were _______________.
Prokaryotes
What feature do all members of Eukarya share?
nucleus!
Mushroom, yeast, and mold are all __________.
Fungi
___________________ is a mechanism we discussed in class that changes in allele frequencies within a population.
Natural selection
Speciation that occurs when two populations share the same habitat
Sympatric
name the domains of life that are prokaryotic
bacteria and archaea
Single-celled members of domain Eukarya are __________.
Protists
Flowering plants belong to this group
Angiosperms
An organism’s ability to survive and reproduce is called the organism’s
fitness
Two species of insect produce infertile offspring, this is an example of a ________________barrier.
post-zygotic
1
Name 2 of the 3 ways protists can move around
Cilia
Flagella
Pseudopodia
The Pine cone tree that has naked seeds and a vascular system are members of which group?
gymnosperms
What type of selection typically occurs when environmental conditions vary in a way that favors both extremes of a phenotypic range?
Diversifying
All the members of the same species living in the same area.
Population
Name two of the three ways prokaryotes trade genes
Transformation
Transduction
Conjugation
The organisms in most eukaryotic lineages are _________.
Protists
Which structures found in ferns are lacking in mosses?
A fossilized skeleton of a bird is in deeper strata than a fish fossil. Which fossil (bird or fish) is most likely older?
Bird
What type of selection typically occurs when environmental conditions vary in a way that favors both extremes of a phenotypic range?
Diversifying
What are the two broad consequences of high genetic diversity in prokaryotes?
diverse nutritional requirements
diverse oxygen metabolism
A protist that can function as a photoautotroph or heterotroph, depending on the availability of sunlight and/or organic nutrients
Mixotroph
Name two roles of pigments in fungi
1.Protection from UV Radiation
2.Camouflage and Mimicry
3.Communication and signaling
4.Predator Deterrence
5.Antimicrobial Properties
6.Thermoregulation
7.Bioluminescence