Answer:
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water.
Plant cells do not have centrosome and lysosomes, but animal cells do.
Answer:
B) genetic variation needed for a population to evolve
Explanation:
Mutations are important because they bring about the genetic variation needed for a population to evolve.
- Mutation brings about changes in the DNA sequence of an organism.
- Most times, mutation results when an organism tries to adapt and evolve to unfavorable conditions.
- Mutation can originate from mistakes in DNA sequencing.
- It can also be due to environmental influences.
B. group of the same species that live together.
Answer:A nucleoside has two parts: a pentagonal sugar (deoxyribose) and a nitrogenous base (in color). When a nucleoside is joined to a phosphate, it is called a nucleotide . Note: The names of these nitrogenous bases are adenine (red), cytosine (yellow), guanine (blue), and thymine (green).
Explanation: