Placenta is related to:
Correct answer: A. Sheep
- A. Sheep
- B. Spiny ant eater
- C. Duck bill platypus
- D. Kangaroo
Explanation
The correct answer is Sheep. Sheep are placental mammals, meaning they have a placenta that provides nutrients and oxygen to the developing fetus during pregnancy. This is characteristic of mammals in the class Eutheria. In contrast, the spiny ant eater and duck-billed platypus are monotremes, which lay eggs and do not have a placenta. Kangaroos are marsupials, and they give birth to underdeveloped young that continue to grow in a pouch instead of having a placenta.
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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.
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