Bio 3 Flashcards
defined what is a hypothesis
tentative answer to a well framed question and it can ONLY be proven false
What was the hypothesis of Louis Pasteur?
germ hypothesis (common one was: spontaneous generation of life)
Explain Darwin’s Theory
Evolution occurs due to the mechanism of Natural Selection
Define Common ancestor and give an example
Variation in related species living in different locations (ex: finches)
Define artificial selection
Breeding organisms with specific characteristics to produce offsprings with desirable traits (ex: dogs)
Define geology example
the earth is very old, evolution process would take a big amount of time
Define fossils example
similar but different from living organisms (changes occured)
pop. growth vs. resource availability
limited number of offspring survives
Name 5 other modern evidence that proves the theory of Darwin
- fossil record (new fossils are discovered all the time)
- the age of earth (4.5 billion)
- mechanisms of heredity (concept of genes)
- comparative anatomy (homologous and analogous structures)
- molecular evidence
Define Deductive Reasoning
it involves logic that flows in the opposite direction, from the general to the specific. The ‘‘If…then’’ logic