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Chapter 4: Problem 46

For each of the following questions, four choices have been provided. Select the correct alternatives. Which one of the following is a wrong statement? (a) Every month ovum will be released from both ovaries. (b) Ovoviviparous animals do not provide nutrition to the developing embryo. (c) In girls, voice becomes high pitched at puberty. (d) Secondary sex characters do not have direct involvement in reproduction.

Short Answer

Expert verified
Answer: (a) Every month ovum will be released from both ovaries.

Step by step solution

01

Statement (a): Every month ovum will be released from both ovaries.

This statement is incorrect. During the menstrual cycle in female mammals, usually only one ovary releases an ovum (egg) each month. The ovaries alternate the release of an ovum in most cases.
02

Statement (b): Ovoviviparous animals do not provide nutrition to the developing embryo.

This statement is correct. Ovoviviparous animals are those that produce eggs that hatch inside the parent's body instead of laying them externally. In these animals, the embryos are nourished by the nutrients stored in the egg yolk, not by the parent.
03

Statement (c): In girls, voice becomes high pitched at puberty.

This statement is also correct. During puberty, girls experience a change in their vocal cords, which typically results in a higher-pitched voice.
04

Statement (d): Secondary sex characters do not have direct involvement in reproduction.

This statement is correct as well. Secondary sex characteristics are features that distinguish males and females but are not directly involved in the reproductive process. Examples include facial hair in males and breast development in females. Based on the analysis above, The correct answer is: (a) Every month ovum will be released from both ovaries. (This statement is incorrect)

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