Answer:
B. into an aquifer
Explanation:
People can obtain groundwater by drilling a well into an aquifer.
An aquifer is a porous and permeable formation where groundwater can be found.
- Aquifer is usually found below the water table.
- In this regard, the pore spaces of this layer of the earth allows for the storage of ground water.
- When the aquifer is punctured, groundwater can be abstracted.
Groups of atoms held together by energy are called a molecule. The energy or force holding the atoms together is called a Chemical Bond,
The Covalent bond involves the sharing of 2 electrons.
Molecule- One or more atoms make up molecules. They may have the same atoms or different atoms if they have more than one. Biological molecules like DNA and proteins can include thousands of atoms.
Chemical Bond- Chemical bonding is the process through which two or more atoms, molecules, or ions establish a chemical link to create a chemical compound.
Electron- A negatively charged subatomic particle known as an electron can either be free or attached to an atom (not bound).
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Answer:
The endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once prokaryotic microbes. In this theory, the first eukaryotic cell was probably an amoeba-like cell that got nutrients by phagocytosis and contained a nucleus that formed when a piece of the cytoplasmic membrane pinched off around the chromosomes. Some of these amoeba-like organisms ingested prokaryotic cells that then survived within the organism and developed a symbiotic relationship. Mitochondria formed when bacteria capable of aerobic respiration were ingested; chloroplasts formed when photosynthetic bacteria were ingested. They eventually lost their cell wall and much of their DNA because they were not of benefit within the host cell. Mitochondria and chloroplasts cannot grow outside their host cell.
Explanation:
Matched chromosomes carrying information about the same characteristics in the organism are called homologous chromosomes.
