Answer:
D. the nucleus contains the protons and neutrons which takes up most of the mass of the atom
Explanation:
The correct answer is D.
Seafloor spreading is a process of creating seafloor crust out of volcanic materials that are emerging from the Earth's core at the mid-ocean ridges.
This is made possible by the moving of Earth's tectonic plates.
Answer:
tissue
Explanation:
a tissue is a group of cells that work together to perform a common function
Answer:
H
Explanation:
H is the dominant allele while h is recessive.
Answer: As each cell differentiates, the <em>DNA </em>changes so that each type of cell has different <em>DNA</em> once it reaches maturity. Mutations in the cells’ nuclei lead to new combinations of <em>DNA</em>, resulting in different shapes and functions in the different types of cells.
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