exceptions in species

Question 1

define species

Answer 1

is a group of organisms that can inter-breed under natural circumstances to produce fertile offspring

Question 2

what are the exceptions to the definition of species

Answer 2

• hybrids
• ring species
• asexual reproducers
• genetic clines

Question 3

what are hybrids

Answer 3

Involves two individuals from different species mating producing Is infertile offspring. The hybrid offspring carries mismatched chromosomes and is difficult to classify.

Question 4

what are ring species?

Answer 4

Populations are able to produce fertile offspring with populations on either side of them. They cannot produce fertile offspring with populations that have greater separation.

Question 5

what are asexual reproducers?

Answer 5

It does not involve the fusion or change in the number of gametes. The offspring that arises will inherit the full set of genes of their single parent.

Question 6

what are genetic clines?

Answer 6

Are changes in a trait, or changes in a frequency of traits across a species over an environmental transition.

Question 7

describe speciation in terms of isolation

Answer 7

Isolation involves species being separated. This results in genetic differences increasing to the point where populations can no longer reproduce. When isolated populations are exposed to different selective pressures.