One adaptation that is unique to marine mammals is they nurse their young.. The correct option among all the options that are given in the question is the fourth option or the last option or option "d". I hope that this is the answer that you were looking for and the answer has come to your desired help.
Ethics are principles that govern a person’s behavior or the conducting of an activity
It consists of skin, hair, nails, and glands. The skin protects the body from the environment on the outside. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature. It also helps store fat and water.
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Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.
Explanation: