« previous next »

Author Question: Two species of frogs belonging to the same genus occasionally mate, but the offs (Read 833 times)

j_sun

  • Sr. Member
  • ****
  • Posts: 384
on: Jul 11, 2013
Two species of frogs belonging to the same genus occasionally mate, but the offspring fail to develop and hatch. What is the mechanism for keeping the two frog species separate?
A) the postzygotic barrier called hybrid inviability
B) the postzygotic barrier called hybrid breakdown
C) the prezygotic barrier called hybrid sterility
D) gametic isolation


coco

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

I'm guessing it's A. 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
You're the best, thank you


« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Species richness increases with island size. Species richness increases with island size.
Species currently endangered in Canada include (a) the Burrowing Owl, Athene cunicularia; (b) Taylor Species currently endangered in Canada include (a) the Burrowing Owl, Athene cunicularia; (b) Taylor
Roots of the keystone species hypothesis: does a higher proportion of predators in diverse communiti Roots of the keystone species hypothesis: does a higher proportion of predators in diverse communiti
Zebras are several species of African equids (horse family) united by their distinctive black and wh Zebras are several species of African equids (horse family) united by their distinctive black and wh
Species, subspecies, populations, and individuals. Species are reproductively isolated from one anot Species, subspecies, populations, and individuals. Species are reproductively isolated from one anot
Phylogenetic shadowing of primate species Phylogenetic shadowing of primate species
Video: Hormonal feedback loop components

For a complete list of videos, visit our video library