Multiple Choice
Which of the following can be found in vertebrates but not in lancelets and tunicates?
32. Vertebrates
Chordates
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Some sharks are viviparous, which means that __________.
A
they lay eggs
B
they have a tendency toward multiple births
C
they have a tendency toward single births
D
they maintain a constant body temperature
E
the young develop within the female's body
Verified step by step guidance1
Understand the term 'viviparous': In biology, viviparous organisms give birth to live young rather than laying eggs. This is a key characteristic that distinguishes them from oviparous organisms, which lay eggs.
Identify the characteristics of viviparous reproduction: In viviparous reproduction, the embryo develops inside the body of the parent, typically the female, and receives nourishment directly from the parent until birth.
Consider the options provided: Analyze each option to determine which one aligns with the definition of viviparous. Options like laying eggs or maintaining a constant body temperature do not fit the definition.
Focus on the correct biological process: The correct answer should reflect the process where the young develop within the female's body, which is a hallmark of viviparous reproduction.
Conclude with the correct understanding: Recognize that the correct answer is that the young develop within the female's body, as this is the defining feature of viviparous organisms.
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