12. Meiosis
Life Cycle of Sexual Reproducers
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- Multiple Choice
All eukaryotic sexual life cycles include:
2443views16rank1comments - Multiple ChoiceSexual and asexual reproduction are alike in that __________.905views
- Multiple ChoiceFertilization produces __________.949views
- Multiple ChoiceWhich of the following is part of the life cycle called alternation of generations?929views
- Textbook QuestionAdd labels to the figure that follows, which illustrates a portion of the human life cycle.1251views
- Textbook Question
A species of rotifer, a small freshwater invertebrate, lost the ability to reproduce sexually millions of years ago. A remarkable feature of its life cycle is the ability to withstand dry conditions. When the rotifer's environment dries out, so does the rotifer, and it can be blown to a new area. Rotifers that land in water will rehydrate and resume an active life. A major pathogen of these rotifers is a species of fungus that cannot survive drying. Some scientists hypothesize that drying rids the rotifers of this pathogen. (a) Design an experimental study to test this hypothesis.
601views - Textbook Question
A species of rotifer, a small freshwater invertebrate, lost the ability to reproduce sexually millions of years ago. A remarkable feature of its life cycle is the ability to withstand dry conditions. When the rotifer's environment dries out, so does the rotifer, and it can be blown to a new area. Rotifers that land in water will rehydrate and resume an active life. A major pathogen of these rotifers is a species of fungus that cannot survive drying. Some scientists hypothesize that drying rids the rotifers of this pathogen. (b) Why might the ability to withstand drying reduce any potential advantage of sexual reproduction in this rotifer species?
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