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".
There is competition among species when they jostle for scarce resources.
<h3>What is competition?</h3>
The term competition has to do with a situation in which members of the same species scramble for scarce resources.
The following are the definitions of the types of competition;
- interference competition - An individual directly interacts and changes the way other individuals attain resources.
- apparent competition - Individuals do not compete directly for resources, but are prey for the same predator.
- exploitation competition - Individuals interact indirectly while competing for common resources.
Learn more about competition among organisms:brainly.com/question/13775651
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