Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Question
Chapter 38, Problem 2AC
Summary Introduction
To suggest:
The reason behind the laying of eggs by most of the birds in spring.
Introduction:
There are various methods of reproduction such as oviparity, viviparity, and ovoviviparity. In oviparity, the females lay eggs. The eggs are very little or not at all developed inside the mother. The development of fetus takes place after the laying of the egg.
Summary Introduction
To describe:
The reason for keeping the light on at night by the poultry farmers in the chicken coops.
Introduction:
The egg laying process in birds is a complex process and is affected by several factors such as daylight time. Some of the farmers keep lights on at night in the coops of chicken.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You are studying the arthropod molting hormones. Your experimental organism is the silkworm. You are conducting a series of experiments. In the first experiment you decide to experimentally decrease the production of the ecdysone by inhibiting the activity of the prothoracic gland during the first instar stage while maintaining the production of the juvenile hormone at normal levels. In the second experiment, you decide to maintain the ecdysone level normal and spray the first instar with juvenile hormone.
Predict the results of your two experiments.
Predict some consequences of trying to use a skin patch to administerinsulin, a protein hormone, to a person who has diabetes mellitus
What casuses a cell to be sensative to particular hormone?
A. all cells are exposed to the endocrine signals so they are all sensivtive to it
B.the presense of receptors for that hormone
c. the shorter the distance between the source cell and the target cell, the more sensitive the target cell is to the hormone.
Chapter 38 Solutions
Biology
Ch. 38.1 - describe the four methods of communication between...Ch. 38.1 - Prob. 2CYLCh. 38.1 - Prob. 3CYLCh. 38.2 - Insulin is a large, water-soluble hormone that...Ch. 38.2 - Prob. 1CYLCh. 38.2 - Prob. 2CYLCh. 38.2 - explain the processes of negative and positive...Ch. 38.3 - A common test of thyroid gland function is to...Ch. 38.3 - Prob. 2TCCh. 38.3 - Prob. 3TC
Ch. 38.3 - Prob. 1HYEWCh. 38.3 - Endocrine disruptors have most frequently been...Ch. 38.3 - Prob. 1CYLCh. 38.3 - explain how negative feedback regulates the...Ch. 38.3 - Prob. 5TCCh. 38 - Prob. 1MCCh. 38 - Prob. 2MCCh. 38 - Steroid hormones include a. testosterone. b....Ch. 38 - Prob. 4MCCh. 38 - Prob. 5MCCh. 38 - Prob. 1FIBCh. 38 - Most endocrine hormones fall into three chemical...Ch. 38 - Prob. 3FIBCh. 38 - Prob. 4FIBCh. 38 - The pancreas releases the hormone _________ when...Ch. 38 - Prob. 6FIBCh. 38 - The adrenal cortex releases three major types of...Ch. 38 - Which chemical class of hormones usually attaches...Ch. 38 - Prob. 2RQCh. 38 - Prob. 3RQCh. 38 - Prob. 4RQCh. 38 - Prob. 5RQCh. 38 - Prob. 6RQCh. 38 - A student rescan, her decides to perform an...Ch. 38 - Prob. 2AC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Describe how hormone receptors can play a role in affecting the size of the responses of tissues to hormones.arrow_forwardHow do hormones compare structurally and functionally in invertebrates and vertebrates?arrow_forwardWhat is the function of the hormone erythropoietin? a. stimulates production of red blood cells b. stimulates muscle growth c. causes the fight-or-flight response d. causes testosterone productionarrow_forward
- In your opinion, what is the significance of having the right cell receptors for a specific hormone? Provide an example to support your answer.arrow_forwardThe brown-nosed tweety bird can be found in both urban and wild environments. Researchers collected 100 birds from a forest, and divided them into two groups of 50 birds, each with 25 males and 25 females. One group was released into the forest and the other into a nearby city. After 1 year, a group of hardworking students collected all 100 birds and measured stress indices associated with signalling by their "stress glucocorticoid hormone", corticosterone (a steroid). They find that compared to the forest birds, the urban birds have greater levels of a stressed phenotype. Which of the following observations is MOST LIKELY to be part of the explanation for this observation? The urban birds have similar levels of corticosterone, but higher levels of the membrane receptor for this glucocorticoid The urban birds have genetic differences in their glucocorticoid receptor to give it higher affinity, making them more sensitive to corticosterone. The urban birds have lower expression of genes…arrow_forwardWhat is the main difference between organizing effects and activating effects of hormones?A. Organizing effects are long-lasting, whereas activating effects are temporary.B. Organizing effects alter brain activity, whereas activating effects alter other parts of the body.C. Organizing effects are excitatory, whereas activating effects are inhibitory.D. Organizing effects depend on estrogens, whereas activating effects depend on androgens.arrow_forward
- How might stress to a pregnant rat alter the sexual orientation of her male offspring? a. Stress increases synthesis of the neurotransmitter acetylcholine. b. Stress decreases synthesis of alpha-fetoprotein. c. Stress increases the release of endorphins in the hypothalamus. d. Stress decreases the release of corticosterone or cortisol from the adrenal glandsarrow_forwardExplain why only certain cells respond to hormones even though all cells in the body are exposed to the hormone.arrow_forwardquick Answer the following answerarrow_forward
- Which is the defining feature of hormones?a. They are only produced in endocrine glands.b. They are secreted into the blood, where they may reach one or moretypes of distant target cells, thereby altering cell function throughoutthe body. c. They are released only by neurons.d. They are never released by neurons.e. They are secreted into ducts, where they diffuse to another nearbygland or other structure.arrow_forwardWhich statement best describes the relationship between the Endocrine and Nervous Systems? Both systems work with the Urinary System to maintain acid-base balance in the blood Both systems regulate hair growth, temperature regulation, and hydration Both systems modulate the stress response, sleep/wake cycles, and metabolism Both systems work with the Urinary System to activate Vitamin Darrow_forwardScientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. What can we, as a society or as individuals, do to protect our ecosystems and watersheds from endocrine disruptors?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License