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

Author Question: Explain Charles Darwin's concept of natural selection. What will be an ideal ... (Read 493 times)

sjones

  • Hero Member
  • *****
  • Posts: 520
on: Jul 1, 2018
Explain Charles Darwin's concept of natural selection.
 
  What will be an ideal response?

Question 2

The theory of aging that states that people in their later years should retire from their jobs and find new, less demanding roles with less power and responsibility is:
 
  a. activity theory
  b. disengagement theory
  c. geriatric theory
  d. selective engagement theory


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 1, 2018
Answer to Question 1

Darwin observed that unexpected physical changes or mutations occurred randomly from one generation to the next, but when these new traits improve chances for survival, they have a much greater chance of being passed along to a new generation. Ultimately, this can result in the creation of distinct and separate species.

Answer to Question 2

B


sjones

  • Member
  • Posts: 520
Reply 2 on: Jul 1, 2018
Gracias!

xthemafja

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Excellent

« previous next »
 

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?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

The clonal selection hypothesis The clonal selection hypothesis
concept map template concept map template
The Concept of Pressure The Concept of Pressure
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
Natural selection acts on genetic variation Natural selection acts on genetic variation
Charles Darwin Charles Darwin
Video: Labor and Childbirth - The Three Stages of Labor: Dilation, Expulsion & Placental مراحل الولادة

For a complete list of videos, visit our video library