BIOLOGY W/ ACCESS>B<
14th Edition
ISBN: 9781264725441
Author: Mader
Publisher: MCG
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Chapter 31.3, Problem 1BS.3QC
Summary Introduction
To determine:
The reason for considerable controversy about the level of dietary vitamin D intake that should be recommended.
Introduction:
The integumentary system of body mainly comprised of skin and its components like hair, scale feathers, and so on. The skin is the outer covering of body and it has important role in protection of body from external environment. The skin also helps in the regulation of body temperature. The skin manufactures precursor molecule that is converted into “vitamin D after exposure to UV light (from sun)”. The body requires vitamin D for the absorption of calcium to promote the bone growth and development.
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Chapter 31 Solutions
BIOLOGY W/ ACCESS>B<
Ch. 31.1 - 1. List five types of epithelium, and identify an...Ch. 31.1 - Prob. 2CYPCh. 31.1 - Prob. 3CYPCh. 31.1 - Recall the three parts of a neuron, and explain...Ch. 31.2 - 1. Explain the difference between an organ and an...Ch. 31.2 - Prob. 2CYPCh. 31.3 - Prob. 1BS.1QCCh. 31.3 - Prob. 1BS.2QCCh. 31.3 - Prob. 1BS.3QCCh. 31.3 - Prob. 1CYP
Ch. 31.3 - Prob. 2CYPCh. 31.3 - 3. Discuss why a dark-skinned individualliving an...Ch. 31.3 - Prob. 4CYPCh. 31.4 - Define homeostasis, and discuss why isitimportant...Ch. 31.4 - Explain how the circulatory, respiratory, and...Ch. 31.4 - Prob. 3CYPCh. 31 - Prob. 1TCCh. 31 - Prob. 2TCCh. 31 - Prob. 3TC
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