Taller 12. Reproducción (cap 43) 1. Most animals reproduce sexually, but many can also or can only reproduce asexually, through budding, regeneration, or parthenogenesis. a. Explain why asexual reproduction might be disadvantageous for an animal living in a...
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Taller 12. Reproducción (cap 43) 1. Most animals reproduce sexually, but many can also or can only reproduce asexually, through budding, regeneration, or parthenogenesis. a. Explain why asexual reproduction might be disadvantageous for an animal living in a changing environment. See p. 900 b. How is parthenogenesis related to sex determination in honey bees? See p. 901 2. Sexual reproduction involves gametogenesis, mating, and fertilization. Fertilization can be external or internal and involves mechanisms for ensuring that only one sperm from the right species enters the egg. a. Describe the steps by which a sea urchin sperm penetrates the egg. See Figure 43.4 b. Explain how polyspermy is prevented and why it is crucial to do so. See p. 906 and Figure 43.4 c. What reproductive adaptations made life on land possible? See p. 908 3. The reproductive systems of men and women produce gametes and hormones, and these functions are controlled by hypothalamic and anterior pituitary hormones. I
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