Bio Random
Terms
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- 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?
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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.