Scientists reported that a female crocodile in a zoo laid an egg with a developing embryo - NSC Life Sciences - Question 2 - 2024 - Paper 1
Question 2
Scientists reported that a female crocodile in a zoo laid an egg with a developing embryo. There were no male crocodiles in the zoo for 16 years. This form of reprod... show full transcript
Worked Solution & Example Answer:Scientists reported that a female crocodile in a zoo laid an egg with a developing embryo - NSC Life Sciences - Question 2 - 2024 - Paper 1
Step 1
1.1 Name the type of meiotic division shown in the diagram above.
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Answer
The type of meiotic division shown in the diagram is called 'Oogenesis'.
Step 2
1.2 Name the type of egg that was laid by the crocodile.
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The type of egg laid by the crocodile is an 'Amniotic egg'.
Step 3
1.3 Explain ONE way in which the type of egg named in QUESTION 1.2 is structurally suited to survive the conditions on land.
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The amniotic egg has a shell that protects the developing embryo from desiccation by preventing the drying out of the embryo and an amniotic fluid that cushions the embryo.
Step 4
1.4 Explain ONE advantage of parthenogenesis.
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One advantage of parthenogenesis is that females can reproduce without males, which increases the chances of the species to survive in environments where males are scarce.
