Extract embryonic membrane like amnion and chorine appeared for the first time:
Correct answer: B. Reptiles
- A. Amphibians
- B. Reptiles
- C. Birds
- D. Fish
Explanation
Embryonic membranes like the amnion and chorion first appeared in reptiles, making option B the correct answer. These membranes are part of the amniotic egg, a key adaptation that allowed reptiles to reproduce on land. Birds also have similar adaptations, but they evolved from reptilian ancestors, not the other way around. Options A, C, and D are incorrect because they do not align with the evolutionary development of embryonic membranes in animals.
This question appeared on the ETEA MDCAT 2009 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Embryonic Development
Embryonic development begins after fertilization with cleavage and formation of the morula and blastula, followed by gastrulation and the establishment of germ layers. It includes organ formation, tissue differentiation and early growth, rather than the later increase in size associated with postnatal development.
Practise Growth and Development
230 free Growth and Development MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Embryonic Development questions
Cleavage differ from mitosis in that:
The developing embryo is protected against the physical trauma by :
The individual with hare-lip shows which of the following condition?
Which germinal layer develops in the digestive system?
During the development of the chick peripheral part of the blastoderm lies unseparated from the yolk and forms:
Extra embryonic membranes like amnion and chorion appeared for the first time in