Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
What is binominal nomenclature?
|
the assigning of names to organisms in a scientific classification system using the genus as the first name and the species as the second. EX/ Homo Sapeins
|
|
|
What is phyletic graducalism?
|
The very slow stages of evolutionary descent and development of a species or group of organisms.
|
|
|
What is punctuated equilibrium?
|
The theory that speciation occurs in spurts of major genetic alterations that punctuate long periods of little change.
|
|
|
What is speciation?
|
The evolutionary formation of new species by dividance of a single species into 2 or more genetically distinct ones.
|
|
|
What is ecological succession?
|
Transition in the species composition of a biological community often following a flood, fire, or volcanic eruption.
|
|
|
What are detrivores?
|
An organism that derives its energy from organic wastes and dead organisms.
|
|
|
What is mimicry?
|
A species has evolved so it resembles another type of organism.
|
|
|
What is symbiosis?
|
A close association organisms of 2 or more species.
|
|
|
What is mutualism?
|
A sybiotic relationship by which both partners benifit.
|
|
|
What is microbial antagonism?
|
a struggle against bacterium.
|
|
|
What is Progeria?
|
rapid onset of physical changes typical of old age, resulting in death before the age of 20.
|
|
|
what is a niche?
|
A population role in its community; the sum total of a population.
|
|
|
Who is Jean-Babtiste Lamarck?
|
Proposed the first theory of evolution in 1801. It was incorrect but it stimulated discussion of evolution.
|
|
|
Who is Carrolus Linnaeus?
|
Developed the first systematic scheme in classifying living organisms 250 yrs ago.
|
|
|
What causes testicular feminization?
|
Genetic mutations on the X chromosome making the developing male baby unable to respnod to androgens.
|
|
|
What is the 10% rule?
|
For every conversion, 90% of the energy is lost as hear. Only 10% is available for use. Vegitarians vs meat eaters.
|
|
|
What are three types of interactions of biotic factors of an ecosystem?
|
1. soil forms foundation for ecosystem-provides resources for proiferation of vegitation.
2. Plants attract herbivors to eat them. 3. herbivores attract carnivores to eat them. |
|
|
What is the order of the classification system?
|
Kingdom, phylum, class, order, family, genus, species.
|
|
|
What kingdom has the most members?
|
Animalia
|
|
|
How does speciation occur?
|
By achieving reproductive isolation
|
|
|
What are two types of reproductive barriers?
|
prezygotic, postzygotic
|
|
|
What is the name is Darwin's book on natural selection?
|
Origin of Species
|
|
|
What was the name of Darwin's ship?
|
HMS Beagle
|
|
|
What islands did he make his observations at and what did he observe?
|
observed finches on galopagos islands
|
|
|
What percent of people get alzheimers disease over the age of 65?
|
1 in 10, 10%
|
|
|
What percent of people get alzheimer's disease over the age of 85?
|
50%
|
|
|
How are free radicals formed?
|
cellular respiration
|
|
|
What is geographic isolation?
|
species occur in different places
|
|
|
What is ecological isolation?
|
species utilize different resources in the habitat
|
|
|
what is behavior isolation?
|
species have different mating rituals
|
|
|
what is temporal isolation?
|
mating or flowering occur during different seasons or at different seasons or at different times of the day
|
|
|
what is mechanical isolation?
|
structural differences prevent mating or pollen transfer
|
|
|
what is gametic isolation?
|
gametes fail to attract each other or funtion poorly
|
|
|
what is allopatric speciation/
|
the formation of a new species as a result of ancestral population becoming isolated by geographical barrier.
|
