CONNECT FOR BIOLOGY >IC<
12th Edition
ISBN: 9781259693397
Author: Mader
Publisher: MCG CUSTOM
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Chapter 41, Problem 3TS
Female athletes who train intensively often stop menstruating. The important factor appears to be the reduction of body fat below a certain level. Give a possible evolutionary explanation for a relationship between body fat in females and reproductive cycles.
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Chapter 41 Solutions
CONNECT FOR BIOLOGY >IC<
Ch. 41.1 - Prob. 1CYPCh. 41.1 - Prob. 2CYPCh. 41.1 - Prob. 3CYPCh. 41.2 - Trace tie pathway a sperm must follow from its...Ch. 41.2 - Prob. 2CYPCh. 41.2 - Prob. 3CYPCh. 41.3 - Name the structures of the female reproductive...Ch. 41.3 - Explain the effects of FSH and LH on the ovarian...Ch. 41.3 - Summarize the roles of estrogen and progesterone...Ch. 41.4 - Prob. 1CYP
Ch. 41.4 - Prob. 2CYPCh. 41.4 - Prob. 3CYPCh. 41.5 - Prob. 1CYPCh. 41.5 - Prob. 2CYPCh. 41.5 - Identify a serious condition that can occur in...Ch. 41 - Prob. 1BS.1QCCh. 41 - Prob. 1BS.2QCCh. 41 - Prob. 1BS.3QCCh. 41 - Some biomedical ethicists are concerned that...Ch. 41 - Prob. 1NS.2QCCh. 41 - Prob. 1ACh. 41 - Prob. 2ACh. 41 - Prob. 3ACh. 41 - In tracing path of sperm, you would mention vasa...Ch. 41 - Prob. 5ACh. 41 - Prob. 6ACh. 41 - Prob. 7ACh. 41 - Prob. 8ACh. 41 - Prob. 9ACh. 41 - Prob. 10ACh. 41 - Prob. 11ACh. 41 - Which means of birth control is most effective in...Ch. 41 - Prob. 13ACh. 41 - Prob. 14ACh. 41 - Prob. 15ACh. 41 - Prob. 16ACh. 41 - Prob. 17ACh. 41 - Prob. 18ACh. 41 - Prob. 19ACh. 41 - Compare the anatomy of the male and female...Ch. 41 - Prob. 2TSCh. 41 - Female athletes who train intensively often stop...Ch. 41 - Prob. 4TS
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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
- The menstrual cycle provides an example of how endocrine biological clocks regulate reproduction. Can you give TWO other examples?arrow_forwardWhich of the following statements does NOT describe the role of progesterone in the female reproductive system? a. Triggers the release of the ovum b. Prevents smooth muscle contraction, thereby preventing premature birth c. Prevents the shedding of the endometrium d. Ensures that the endometrium is thick enough to support a fetilized eggarrow_forwardIn mammals, the male gonad is called the______ . It produces both sperm and the sex hormone________ . Within the male gonad, spermatogenesis occurs within the hollow, coiled structures called_______ .arrow_forward
- In the animal kingdom, only primates menstruate. Other mammalscome into season, or “heat,” during certain times of the year, whilestill others only ovulate after having sex. What would be somepossible advantages of a monthly menstrual cycle?arrow_forwardCompare and contrast the oogenesis and spermatogenesis in zebrafish and drosophila melanogasterarrow_forwardCompare the sperm production of men aged 20-45 with pregnant partners,with the sperm production of men aged 18-30. Suggest two reasons for the differencearrow_forward
- Birth control pills commonly provide excess progesterone that serves to inhibit (suppress) the actions of FSH and LH through a negative feedback loop. Given the role these hormones (FSH and LH) play, how could this feedback loop prevent a woman from becoming pregnant?arrow_forwardA female egg cell has two outer membranes how does the egg cell prevent polyspermy? if polyspermy happens, will the fertilization be viable?arrow_forwardCreate a conclusion about spermatogenesis by using the objectives below. To identify the parts of the male reproductive systems To find the stages of spermatogenesis in cross-sections of the testis of the frog, mouse, and man · To describe the morphological characteristics of frog gametesarrow_forward
- At puberty, the testes contain a finite number of cells and producean enormous number of sperm cells during the life span of a male.Explain why testes do not run out of spermatogonial cellsarrow_forwardCompare oogenesis to spermatogenesis. How are the two processes similar? How do they differ? (Consider both follicle and sperm structure throughout development as well as the timing of the stages.)arrow_forwardCompare and contrast the Spermatogenesis and structure of the testes of: Rat (Vertebrates) Starfish (Invertebrates) Grasshopper (Insects) Frogs (Amphibians)arrow_forward
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