10.1 Species And Taxonomy Flashcards
1
Q
Define species?
A
Members who can breed fertile offspring with each other
2
Q
What criteria’s ensure successful breeding by engaging in courtship behaviour?
A
Same species
Both sexually mature
Form bond between parent to raise kid
Synchronising fertility
3
Q
Define genetic diversity
A
Number of different alleles of genes in a species of a population
4
Q
Define allele frequency
A
How often a particular allele occur within a population
5
Q
Define gene flow
A
Different populations breeding and giving each other new alleles
6
Q
What increases the frequency of positive alleles?
A
Natural selection
7
Q
What is direction change in evolution in terms of tail length?
A
Where the length of the tail increases
8
Q
What is a stabilising change in terms of length of tails?
A
More animals have the same length tail
