« previous next »

Author Question: Among known plant species, which of these have been the two most commonly occurr (Read 999 times)

j_sun

  • Sr. Member
  • ****
  • Posts: 384
on: Jul 11, 2013
Among known plant species, which of these have been the two most commonly occurring phenomena that have led to the origin of new species?
1.    allopatric speciation
2.    sympatric speciation
3.    sexual selection
4.    polyploidy
A) 1 and 3
B) 1 and 4
C) 2 and 3
D) 2 and 4


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jul 12, 2013
Hey again :D

I'm guessing it's D. It makes sense.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

j_sun

  • Sr. Member
  • ****
  • Posts: 384
Reply #2 on: Aug 31, 2013
Sick :D Thanks


« previous next »
 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc
These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her These two species of bedstraw grow predominately on different soil types: Galium saxatile (shown her
The Pathways of Water and Solutes in a Plant. The Pathways of Water and Solutes in a Plant.
Plant Plant
Plant Plant
Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re
Video: Mendel's Principles of Dominance, Segregation and Independent Assortment

For a complete list of videos, visit our video library