formation of new species?

Question

Which of these events contributes most to the formation of new species?

a. Adaptive isolation due to competition
b. Genetic isolation through polyploidy
c. Mate selection
d. Physical isolation of populations

Answer 1

D for sure


You get a population to separate, usually from geographic means then they start getting new genes etc. Mutations are the key to new species, but the isolation must happen first.

Answer 2

It's definitely d. Physical isolation is the only sure way of keeping a separate gene pool. Polyploidy does not always reproductively isolate offspring. And mate selection and adaptive isolation both involve geographic overlap, and while they will cause speciation eventually, physical isolation is the most drastic and common form of speciation

Answer 3

In nature,
D. Physical isolation of populations
Isolated islands tend to "breed" unique species not found anywhere else in the world.

Answer 4

diesel fumes acids sulphur and metals create brand new life forms and types with polymers, and with amino acids of existing life forms enzigms or they simply complify brand new chemobiology angiogenically.

Despite visible extinctions on the planet we likely have a lot more "new" life forms to discover yet,

kinda scairy really eh they make themselves.

Ob1

Answer 5

I would say 'all of the above'. I don't think there is a consensus in the speciation community as to what factor is most important.

Answer 6

physical isolation allows populations to change dramaticaly

Answer 7

Mate selection i think

Answer 8

A for sure

Answer 9

It's either A or D.

Answer 10

i would think answer b....is it right?
interesting question