Amnion is not present around the embryo of:
Correct answer: B. Amphibian
- A. Reptiles
- B. Amphibian
- C. Birds
- D. Mammals
Explanation
In amphibians, the embryo is not surrounded by an amnion. The amnion is a membrane that forms a fluid-filled sac around the embryo in reptiles, birds, and mammals. This fluid-filled sac provides protection and helps regulate the embryo's temperature. However, in amphibians, this structure is absent, making option B the correct choice.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
Practise Biodiversity and Variety of Life
3,130 free Biodiversity and Variety of Life 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 Kingdom Animalia questions
Amphibians evolved from:
The cavity between the body wall and the alimentary canal is:
Trypanosoma is transmitted in human beings by:
In_both ovaries and oviducts are functional.
Archaeopteryx is a connecting link between:
In some coelenterates, there are special feeding zooids which are called_which perform only the function of nutrition for the whole colony: