Concept explainers
Introduction:
The two systems responsible for maintaining homeostasis in the body are the endocrine system and the nervous system. The endocrine system releases various hormones that function to regulate different physiological processes of the body. The hormones control vital processes such as electrolyte balance, temperature regulation, and osmotic balance.
Answer to Problem 1RAC
The correct answer is option (c) uses blood-borne chemical messengers.
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) uses blood-borne chemical messengers. The endocrine system uses hormones that are released in the blood circulation and not into any ducts. The hormones directly affect the target cell or tissue by reaching through the blood. So, this system uses blood-borne chemical messengers. So, the correct answer is option (c).
Explanation for incorrect answer:
Option (a) is faster-acting than the nervous system. Endocrine systems are slower than the nervous system as it releases hormones that reach the target cells and results in slower and permanent response. So, this is an incorrect option.
Option (b) produces effects that are of shorter duration. The effects produced by the nervous system are of shorter duration as they only last till the time neural impulse is generated whereas; the response of the endocrine system lasts long. So, this is an incorrect answer.
Option (d) produces more localized effects. The endocrine system produces a widespread effect as it is interlinked with many physiological processes and the effect of the nervous system is more localized. So, this is an incorrect answer.
Option (e) relies less on chemical messengers. The endocrine system relies on chemical messengers as hormones that constitute the major part of the endocrine system are chemical messengers. So, this is an incorrect answer.
The endocrine system uses chemical messengers called hormones that travel through the blood and reach the target cell or tissue. Hence, the correct answer is option (c) uses blood-borne chemical messengers.
Want to see more full solutions like this?
Chapter 17 Solutions
CONNECT FOR ANATOMY AND PHYSIOLOGY >IC
- How is a protein destined for the Endoplasmic Reticulum (ER), imported into the ER? Be concise.arrow_forwardFind out about the organisations and the movements aimed at the conservation of our natural resources. Eg Chipko movement and Greenpeace. Make a project report on such an organisation.arrow_forwardWhat are biofertilizers and mention the significancearrow_forward
- PCBs and River Otters: Otters in Washington State’s Green-Duwamish River have high levels of polychlorinated biphenyls (PCBs) in their livers. PCBs can bind to the estrogen receptors in animals and disrupt the endocrine system of these otters. The PCBs seem to increase the estrogen to androgen ratio, skewing the ratio toward too much estrogen. How would increased estrogen affect the river otter population? Based on your reading of the materials in this unit, what factors can affect fertility in humans? Explain how each of the factors affecting human fertility that you described can disrupt the human endocrine system to affect reproduction.arrow_forwardOther than oil and alcohol, are there other liquids you could compare to water (that are liquid at room temperature)? How is water unique compared to these other liquids? What follow-up experiment would you like to do, and how would you relate it to your life?arrow_forwardSelection of Traits What adaptations do scavengers have for locating and feeding on prey? What adaptations do predators have for capturing and consuming prey?arrow_forward
- Competition Between Species What natural processes limit populations from growing too large? What are some resources organisms can compete over in their natural habitat?arrow_forwardSpecies Interactions Explain how predators, prey and scavengers interact. Explain whether predators and scavengers are necessary or beneficial for an ecosystem.arrow_forwardmagine that you are conducting research on fruit type and seed dispersal. You submitted a paper to a peer-reviewed journal that addresses the factors that impact fruit type and seed dispersal mechanisms in plants of Central America. The editor of the journal communicates that your paper may be published if you make ‘minor revisions’ to the document. Describe two characteristics that you would expect in seeds that are dispersed by the wind. Contrast this with what you would expect for seeds that are gathered, buried or eaten by animals, and explain why they are different. (Editor’s note: Providing this information in your discussion will help readers to consider the significance of the research).arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning