Answer:
A basic pedigree usually includes three generations—the consultand's first-degree relatives (parents, children, siblings) and second-degree relatives (half siblings, grandparents, aunts and uncles, grandchildren). Third-degree relatives, particularly cousins, are often included, if only to note that they "exist."
Explanation:
I believe the correct answer is the second option, or b.
A scientis could see the DNA and probably not know the exact age but a close guess to how old he is
Energy in ecosystems must be continuously supplied by the sun as the warmth from the sun allows plants to grow plus photosynthesis depends on the sun's energy also. Animals also depend on the sun for warmth to survive (or else hibernate). Also, the sun powers the water cycle, the carbon cycle and the nitrogen cycle
Answer:
They both go back and forth, such as the climate going from hot to warm, and the tectonic plates of the earth going from closed 300 million years ago to spreading far apart now.
