Unit 1: Evolution
Unit 2: Biodiversity
Unit 3: Ecology
Unit 4: Climate Change & Organism Adaptations
Random
100
Which force of evolution is characterized by random changes in allele frequencies?
Genetic drift
100
What are the 4 things that all cells have in common?
Plasma membrane, cytoplasm, ribosomes, DNA
100
What are the 4 levels of ecology?
Organismal, population, community, and ecosystem.
100
The warming of Earth due to excess CO2 and other greenhouse gases is called the ________.
Greenhouse effect
100
What kind of symmetry does a jellyfish have?
Radial symmetry
200
Traits that aid in male-male competition for females are called _____, while traits that aid in males attracting females are called _____.
Intrasexual selection; Intersexual selection
200
Which 2 plant groups produce seeds?
Gymnosperms and angiosperms
200
What type of species interaction benefits one organism and has no effect on the other?
Commensalism
200
____ is the potential reproductive capacity of an individual within a population.
Fecundity
200
The observable traits expressed by an organism is its ______, while the underlying genetic material consisting of alleles is an organism's _______.
Phenotype; Genotype
300
What does the Hardy-Weinberg principle assume about a population?
An infinitely large population and no forces of evolution.
300
Which kind of speciation involves geographic separation of populations?
Allopatric speciation
300
What does a negative population growth mean?
The death rate is higher than the birth rate
300
What are the characteristics of a Type III survivorship curve?
Few organisms survive to adulthood, large number of offspring, low parental care
300
What are the tree-like structures on neurons that receive messages?
Dendrites
400
Population change over time is called ______, while the creation of new species and higher taxonomic groups is called ______.
Microevolution; Macroevolution
400
What are the 3 post-zygotic isolating mechanisms?
Reduced hybrid viability, reduced hybrid fertility, and hybrid breakdown.
400
A species whose presence is key to maintaining biodiversity in an ecosystem is called a ______ species.
Keystone
400
The effects of slight changes in the Earth's orbit on the Earth's climate are called _____ cycles.
Milankovitch
400
There are 207 bunnies in a population. Within one year, if 48 bunnies are born and 15 bunnies die, what is the per capita population growth rate (r)?
0.16
500
What are the 3 conditions necessary for evolution by natural selection to occur?
Inherited genes, high fitness, and genetic variation
500
Which species concept would be the most useful in defining species of bacteria?
Phylogenetic
500
This graph is representative of ____ growth. 
Logistic
500
What are 3 ways invasive species can threaten native species?
Competition for resources, predation, and disease
500
Which species is/are most closely related to A?
B and C