5 Written questions
5 Matching questions
- what is science
- Disruptive selection
- Biological evolution
- a it increases the amount of variation in a trait individuals with the average trait have a low fitness and the extremes have a higher fitness this is how speciation occurs the two extremes can go in different directions resulting in speciation. An example is the black bellied seed crackers who either had very short or very long beak if they lived long enough to survive so by maiting with the group similar to you you increased the ofsprings survival to the point where eventually there would be two species of long beaked and short beaked
- b means change in living populations over time through reproduction.
- c the observation identification description experimental investigation and theoretical explanation of natural phenomena
- d gave natural explanations to natural things
- e northern hemisphere continents
5 Multiple choice questions
- energy use, cellular structure, hereditary genetic information,reproduction, evolution
- it is a change in a single DNA sequence it is the most basic mutation it can be a bad connection of a nitrogenous bases or, when DNA corrects itself.
- increases the completeness of our knowledge and possesses maximum and robust explanitiory power.
- code for immunity and H-W test proved evolution was occuring
- ability to be corroborated or repeated
5 True/False questions
morphology → structures that typically had or have a function and the relationship forms an interface between organism and enviroment.
Precision and accuracy → infering trees based on similarity in charactaristics
what are the three main types of selection → reinforcement of divergence founding of hybrid zones extinctions of one population or the creation of new species
who coined the term survival of the fittest → 1. isolation of populations
2. divergence of traits
3. reproductive isolation
Phylogenetic species concept → the smallest diagnosable monophyletic group of populations, they are related by most characteristics and DNA. These groups are based in statistical differences in the traits which are used to estimate phylogeny.However,What characters should we use to base our phylogeny on
How much divergence from a trait constitutes a species ? 1% or 10% etc,It is often difficult to distinguish between gene trees and species trees.