EVOLUTION
This part of a phlyogenetic tree represents the common ancestor
What is the outgroup?
This type of isolaton shows that animals react and resppnd to courtship signals of their own species
What is behaviorial isolation?
This mode of selection occurs when individuals of most extremes have higher numbers.
What is disruptive selection?
The number of individuals in a population divided by the area that population takes up is this
What is density?
This class of organisms are primaty producers.
What are autotrophs?
This forms when any two branches diverge in a phylogenetic tree
What is a node?
These are different forms of the same gene.
What are alleles?
Prokaryotes acquire DNA from different species is an example of what process
What is lateral gene transfer?
This type of growth adds a multiple of the population each time it grows.
What is multiplicative growth?
The interaction demonstratedby two species of beetles eating the same type of food.
What is competition?
The place where Darwin's finches originated
What is South America?
This process drives the cycling of water through the world system?
What is evaporation?
According to the theory of island biogeography, this type of island would have the greatest species diversity.
What is a large island near the mainland?
This factor is considered essential for a species to be able to colonize a new environment.
What is its ability to disperse?
This tpe of organism is responsible for ensuring that nutrients are not lost from the system
What are decomposers?
This speciation results from a division of a population by a physical barrier
What is allopatric speciation?
Polyploidy is more common in this type or organism.
What are plants?
People that have the sickle cell trait have an increased resistance to malaria. This is an example of what trait.
What is the heterozyogous advantage?
Most organisms cannot break down atmospheric nitrogen gas because of this.
What is the triple bond that holds the two nitrogen atoms together?
The GPP of a community is 40 units per day on average, while the NPP of the community is 15 units per day. This number of units was used for cellular respiration and other catabolic processes?
What is 25?
The differential survival and reproduction fuels this major process in evolution.
What is natural selection?
This arises from genetic contribution from two different parental species
What is alloploidy?
This is Darwin's explanation for the evolution of bright colors and other conspicuous characters in many species.
What is sexual selection?
The value of r at carrying capacity
What is zero?
A female oyster lays up to a million eggs but very few find a place to to attach and grow. Many die.
What is high fecundity and low survivorship?