Positive feedback mechanisms to drive homeostasis are more common than negative feedbackmechanisms.A. TrueB. FalseCholesterol is a waxy, organic substance found in body cells and in blood. The humanbody uses cholesterol to make cell membranes, vitamin D, hormones, and bile (a liverproduct). There are two major types of cholesterol, both produced by the liver. What isthe typical path that dietary cholesterol (cholesterol we get from food) takes through thedigestive system, from the mouth to where it is absorbed into the bloodstream?A. Mouth → Esophagus → PharynxB. Mouth → Pharynx → Esophagus → Small intestine → StomachС. Mouth —D. MouthSmall intestine → Stomach→ Stomach –→ Small intestine> PharynxPharynx → Esophagus→ Esophagus -→ StomachSmall intestine

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Positive feedback mechanisms to drive homeostasis are more common than negative feedback mechanisms. A. True B. False

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter2: Molecules Of Life

Section: Chapter Questions

Problem 3DID: Effects of Dietary Fats on Lipoprotein Levels Cholesterol that is made by the liver or that enters...

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Concept explainers

Homeostasis

Homeostasis is a self-regulatory process through which different biological systems maintain constant internal environmental conditions to compensate for environmental changes. In human physiology, it is a process of self-regulating internal, chemical, and physical conditions at an optimal level for survival. The stability through homeostasis can be attained through dynamic equilibrium, in which there is a continuous change until it reaches its systemic conditions.

Question

Positive feedback mechanisms to drive homeostasis are more common than negative feedback
mechanisms.
A. True
B. False
Cholesterol is a waxy, organic substance found in body cells and in blood. The human
body uses cholesterol to make cell membranes, vitamin D, hormones, and bile (a liver
product). There are two major types of cholesterol, both produced by the liver. What is
the typical path that dietary cholesterol (cholesterol we get from food) takes through the
digestive system, from the mouth to where it is absorbed into the bloodstream?
A. Mouth → Esophagus → Pharynx
B. Mouth → Pharynx → Esophagus → Small intestine → Stomach
С. Mouth —
D. Mouth
Small intestine → Stomach
→ Stomach –→ Small intestine
> Pharynx
Pharynx → Esophagus
→ Esophagus -
→ Stomach
Small intestine

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