This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In the evolution of whelk-eating behavior in crows, which of the following was o (Read 423 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Oct 27, 2013
In the evolution of whelk-eating behavior in crows, which of the following was optimized through natural selection?
A) the average number of drops required to break the shell
B) the average height a bird flew to drop a shell
C) the average total energy used to break shells
D) the average size of the shells dropped by the birds
E) the average thickness of the shells dropped by the birds


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Celeste on Sep 1, 2019

Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Sep 1, 2019
C


penza

  • Member
  • Posts: 1,022
Reply 2 on: Oct 27, 2013
:D TYSM

Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Cotton-top tamarin eating a grasshopper Cotton-top tamarin eating a grasshopper
Landmarks in the evolution of life on Earth Landmarks in the evolution of life on Earth
Ants eating candy Ants eating candy
Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
A field study of guppy life history evolution. A field study of guppy life history evolution.
Genetic polymorphism for foraging behavior in fruit fly larvae Genetic polymorphism for foraging behavior in fruit fly larvae
Video: The pH scale - Strong acids and Weak acids

For a complete list of videos, visit our video library