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

Author Question: Which of the following is an adaptive advantage of darker skin pigmentation? A. preserving a ... (Read 107 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 10, 2018
Which of the following is an adaptive advantage of darker skin pigmentation?
 
  A. preserving a healthy amount of vitamin B complex needed for reproduction
  B. increased production of vitamin D
  C. better regulation of body heat
  D. eliminating the need for tanning and reducing the risk of freckling

Question 2

Which of the following is related to the evolution of skin pigmentation in human populations?
 
  A. the amount of ultraviolet radiation and the need for vitamin D
  B. the amount of carbohydrates versus proteins that are in the diet
  C. the need for natural camouflage from predators
  D. iron and zinc compounds in the soil


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

irishcancer18

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 10, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


justinmsk

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jul 10, 2018
Thank you


irishcancer18

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 10, 2018
No problemo


« previous next »
 

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor
Cross section of skin Cross section of skin
Intramuscular drug administration: (a) cross section of skin showing depth of needle insertion Intramuscular drug administration: (a) cross section of skin showing depth of needle insertion
Skin color variations Skin color variations
Assessment for skin turgor Assessment for skin turgor
Skin color is a polygenic trait controlled by three or four genes, producing a wide range of phenoty Skin color is a polygenic trait controlled by three or four genes, producing a wide range of phenoty
Video: Pasteur's Experiment

For a complete list of videos, visit our video library