BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 38, Problem 1CT
Summary Introduction
To describe:
The way in which an embryo obtains the oxygen for aerobic respiration because at no point in human development does embryo has functional gills.
Introduction:
Fertilization is the process in which male and female gametes are fused to make an embryo. This embryo later develops into an organism. It undergoes several developmental processes to form a complete organism.
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Chapter 38 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 38 - Prob. 1SACh. 38 - Prob. 2SACh. 38 - Testosterone is secreted by the _______. a. testes...Ch. 38 - Prob. 4SACh. 38 - Prob. 5SACh. 38 - Prob. 6SACh. 38 - Match each term with the most suitable...Ch. 38 - Prob. 8SACh. 38 - A human blastocyst normally implants in...Ch. 38 - Put these human developmental events in order,...
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- If the gas gland in a marine bony fish becomes over active, thus allowing more oxygen through than normal, what will: (i) the effect be on the structure that it is associated with? (ii) the effect be on the organism itself?arrow_forwardIn arthropods why isn't gas exchange done through cutaneous diffusion?arrow_forwardIf the frontal cilia of an ascidian pharynx were immobilized what would be the likely consequence(s) closure of siphons no mucus net spreading cessation of gas exchange cessation of the feeding currentarrow_forward
- Explain why the lungs of a frog is underdeveloped.arrow_forwardIdentify and describe how the respiratory system forms in theembryo and fetusarrow_forwardFigure 39.7 Which of the following statements about the mammalian respiratory system is false? When we breathe in, air travels from the pharynx to the trachea. The bronchioles branch into bronchi. Alveolar ducts connect to alveolar sacs. Gas exchange between the lung and blood takes place in the alveolus.arrow_forward
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