Life on Earth 2 Flashcards
1
Q
Biological Species Concept
A
Interbreeding natural populations that are reproductively isolated from other such groups
2
Q
But this concept has at least 2 major limitations What are they?
A
How do you determine species among asexually reproducing organisms?
What if it is not possible to discover if two groups interbreed (fossils)?
3
Q
Biodiversity
A
The total number of species in an ecosystem
4
Q
The discovery of species depends on factors such as
A
abundance, size, ease of classification, and accessibility
5
Q
The number of named
species is currently about ___ million
A
1.5 million
6
Q
Phylogenetic Species Concept
A
The populations of each species share a common ancestor and are said to be monophyletic
