Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 49, Problem 2ITD
Summary Introduction
To review:
The effects of aging, smoking, and STDs (sexually transmitted disease) on sperm count due to the regional difference in these variables.
Introduction:
The quality of semen depends upon the number of sperms present, shape of the sperms, and the motility of the sperms. Sperm count is the number of spermatozoa or sperms present per ejaculation. The sperm count is affected by many factors that include aging, smoking, and STDs. Males with low sperm count may get diabetes, heart stroke, and other problems.
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Students have asked these similar questions
Which of the following statements is true?
Women with endometriosis always have symptoms of the disease, even if they are only mild symptoms.
Patients under 25 years of age with endometriosis are often treated with surgical hysterectomy.
In endometriosis, endometrial tissue only grows on reproductive organs and cannot affect other structures in the pelvic or abdominal cavity.
About 1/3 of women with endometriosis struggle with infertility.
Identify whether the following statements describe Asexual or Sexual Reproduction. Answer it all.
1. Requires only one parent and creates offspring genetically identical to parent
2. Needs two parents and creates offspring genetically unique from parents
3. Leads to more genetic diversity
4. Has a little chance of genetic variation
5. Commonly happens to more complex organisms such as plants and animals
6. Commonly occurs to less developed organisms such as bacteria and fungi
7. Does not require finding a mate and formation of gametes
8. Requires finding a mate and formation of gametes
9. Typically happens in faster time period
10. Usually occurs in slower time period
Which of the following statements correctly identifies the differences between spermicidal jelly and a condom?
Select one:
a. Condoms are semipermeable membranes whereas spermicidal jelly does not form any barrier.
b. Condoms contain an antibacterial coating while spermicidal jelly only kills sperm cells.
c. Condoms form a barrier to protect against sperm movement as well as viruses. Spermicidal jelly breaks down cell membranes of bacteria.
d. Condoms prevent the physical transfer of most sexual secretions. Spermicidal jelly kills sperm, but allows fluid transfer.
Chapter 49 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 49.1 - Prob. 1SBCh. 49.2 - What are egg coats, and what is their function?...Ch. 49.2 - Prob. 2SBCh. 49.3 - Outline the roles of follicle-stimulating hormone...Ch. 49.4 - How does the oral contraceptive pill prevent...Ch. 49 - Prob. 1TYKCh. 49 - Which of the following processes does not increase...Ch. 49 - Prob. 3TYKCh. 49 - Prob. 4TYKCh. 49 - The slow block to polyspermy: a. is caused by a...
Ch. 49 - Prob. 6TYKCh. 49 - Prob. 7TYKCh. 49 - Prob. 8TYKCh. 49 - Prob. 9TYKCh. 49 - Prob. 10TYKCh. 49 - Prob. 11TYKCh. 49 - Prob. 12TYKCh. 49 - Prob. 13TYKCh. 49 - Prob. 14TYKCh. 49 - Prob. 15TYKCh. 49 - Prob. 16TYKCh. 49 - Prob. 17TYKCh. 49 - Prob. 18TYKCh. 49 - Prob. 1ITDCh. 49 - Prob. 2ITDCh. 49 - Prob. 3ITD
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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
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- Mumps is a viral infection. The primary symptom of mumps is visible swelling of the parotid gland on either side of the face. However, the virus can also infiltrate the male reproductive system, causing the testes to atrophy. Some effects include oligospermia (low sperm count), azoospermia (no sperm in semen), and asthenospermia (reduced sperm movement). Describe how intrauterine insemination can be used to aid successful fertilization and explain why it helps. Make sure that the treatment process AND how the process helps to improve fertility are clearly explained.arrow_forwardList three reasons why individuals that result from sexual reproduction do not have the same DNA instructions as their parents.arrow_forwardCircle the letter of the correct response choose the correct answer, then write one sentence to explain your answer. 10. Variation in the offspring of sexually reproducing organisms is the direct result of (1) sorting and recombining of genes (2) replication and cloning (3) the need to adapt and maintain homeostasis (4) overproduction of offspring and competitionarrow_forward
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