« previous next »

Author Question: Over a span of two decades, scientists measured changes in the beak size of a po (Read 1113 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
on: Apr 23, 2014
Over a span of two decades, scientists measured changes in the beak size of a population of Galápagos ground finches. This ______.
A) provided evidence of natural selection in action
B) is an example of artificial selection
C) is an example of overproduction
D) led Darwin to his theory of evolution through natural selection


Millan

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: May 12, 2014
This is for essentials biology, right? the answer is A. Bye for now.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
Reply #2 on: May 12, 2014
Thx a lot, Millan - this helps so much.


« previous next »
 

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Genetic drift and population size. Genetic drift and population size.
Scientists have demonstrated functional hair regeneration from adult stem cells Scientists have demonstrated functional hair regeneration from adult stem cells
Australopithecus sediba shares small brain size with other members of Australopithecus but also has Australopithecus sediba shares small brain size with other members of Australopithecus but also has
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ... A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
Vehicles equipped with onboard refueling vapor recovery usually have a reduced-size fill tube. Vehicles equipped with onboard refueling vapor recovery usually have a reduced-size fill tube.
Contrasting eukaryotic and prokaryotic cells in size and complexity Contrasting eukaryotic and prokaryotic cells in size and complexity
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library