D makes the most sense, the rest of them aren’t really logical.
It is rock because it is a part if the inner planets
Answer:
ATP
Explanation:
Adenosine triphosphate, or ATP, is the primary carrier of energy in cells
The bones in a bird are hollow, reducing its weight for flight, this is an example of ADAPTATION. The adaptive responses emerge as a consequence of different environmental pressures.
<h3>Adapatation and environment</h3>
Adaptation is an evolutionary process by which organisms adjust to the environment in which they live.
For example, the bones in a bird are hollow because this adaptive feature enables them to fly.
Adaptations are a consequence of the process of natural selection, i.e., the differential survival and reproduction of the fittest organisms.
Learn more about adaptations here:
brainly.com/question/2396978
Bacteria were first observed by the Dutch microscopist Antonie van Leeuwenhoek in 1676
<u>-TheUnknownScientist</u>
