The correct answer is D. They have two successive sets of teeth including milk teeth and permanent adult teeth
Explanation:
In biology, a diphyodont is an animal that has two different sets of teeth, this often means the animal has a set of baby teeth that are later replaced by permanent teeth, this occurs in most mammals including humans. Additionally, diphyodont differ from other types of animals that have either only one set of teeth (monophyodonts), for example, toothed whales or change their teeth permanently (polyphyodont), for example, crocodiles. Thus, mammals are diphyodont because "they have two successive sets of teeth including milk teeth and permanent adult teeth".
Explanation:
Third Option is absolutely correct.
Answer:
HeLa cells have been used in research to study
Explanation:
the nature and progression of cancer
<span>The answer to your question is Homo sapiens.</span>
<span>a)Stem cells must always be provided by a donor who is financially compensated.</span>
