User Account

All Pages

Evolutionary pressure to account for darker skin in humans

Assignment Help Biology
Reference no: EM132578709

Please I need help on this questions.

1. How does skin cancer not exert enough evolutionary pressure to account for darker skin in humans?

2. How does folate deficiency exert enough evolutionary pressure to account for darker skin in humans?

3. What is one indispensable function of UVB rays in the human body? How does this exert evolutionary pressure on human skin color?

4. Briefly describe the 2 reasons why the Inuit people exhibit somewhat darker skin levels than would be predicted given the UV levels at their latitude.

5. Briefly explain why skin color is described as "one of the least useful characteristics in determining the evolutionary relations between human groups"?

6. Do biologists typically classify specific forms of traits as good or bad? For example, long tails in cats could be classified as good and short tails as bad. Explain the reasoning or evidence behind your answer.

7. If you travel north from the equator, what generally happens to the intensity of ultraviolet (UV) light?

8. How does the synthesis of melanin by melanocytes help protect the other cells in your skin?

Reference no: EM132578709

Questions Cloud

Possibility of errors made during dna replication : How does the fact that DNA replicates semiconservatively decrease the possibility of errors made during DNA replication?
How to determine the company predetermined overhead rate : Determine the company's predetermined overhead rate for the year and the amount of underapplied or overapplied overhead for the year.
Define responsibilities of community and public health nurse : What are the responsibilities of community and public health nurses in promoting health and decreasing illness and injury in populations, families.
Analyze the methodology of risk and hazard identification : Describe and analyze the methodology of risk and hazard identification. What are the basic elements of a BIA? Who manages the BIA
Evolutionary pressure to account for darker skin in humans : 1. How does skin cancer not exert enough evolutionary pressure to account for darker skin in humans?
How is this connected to diabetes : How is this connected to diabetes? Explain the pathophysiology.
What dollar amount should be credited to allowance : Allowance for Uncollectible Accounts had a credit balance of 6,000. What dollar amount should be credited to Allowance for Uncollectible Accounts at year end?
What is the impact to the company : Analyze perspectives on global supply chain design and Evaluate sustainability initiatives impact on global supply chains
Climate change a northern catastrophe : Biodiversity an viewpoints Is Climate Change a Northern Catastrophe or an Arctic Opening?

Reviews

Write a Review

Biology Questions & Answers

  Immune response to infectious disease

It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.

  A review on advanced glycated end products (ages)

This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.

  Plastic as a soil stabilizer

Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.

  Principles of microbiology

This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.

  List the biologic functions

Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?

  Biologic function relationships

Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.

  Case study on patient in the haematology laboratory

Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.

  Use of pcr and genetic approaches in biotechnology

The use of PCR and genetic approaches in biotechnology

  Describe the role of this enzyme in honey

Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.

  Genetic problems

What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?

  Prepare an essay on nosocomial infection

Prepare an essay on nosocomial infection.

  Monitoring and recording the blood pressure

To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd