Because they are marine mammals and they need them to breathe out of
Answer:
D. form as the result of compaction and cementation.
Explanation:
A. B. and C. are correct therefore leaving D as your answer.
All minerals are unique, all minerals form naturally, and have chemical compositions.
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<span>Metacognition, within the control process, represents an example because it refers to the theory of the mind, which is born in psychology and other cognitive sciences to refer to the ability of human beings to express ideas and objectives through plans and projects to develop a system or a specific case.</span>
Same
<span>Homologous structures refer to structures that have similar characteristics in terms of morphology, anatomy, genetics, and embryology yet still different when their functions are concerned. On the other hand, analogous structures are those organisms that have similar lifestyle because they live in the same habitat yet they belong in different groups.</span>
