Answer:
The development of a protostomed organism begins with a spiral development. The mesoderm divides and forms the celoma. There is formation of the celloma from the blastoporo.
The development of a deuterostomy organism begins with radial and indeterminate segmentation. Archaenteron evaginations occur and celoma is formed. The anus develops from the blastoporo and the mouth from a secondary opening.
Answer:
The answer is Atom.
Explanation:
The atom is the smallest constituent unit of matter that has the properties of a chemical element and that it is not possible to divide by chemical processes. The atom is formed by a nucleus with protons and neutrons and several orbital electrons (subatomic particles); whose number varies according to the chemical element. Atoms combine to form molecules that then interact to form solids, liquids and gases.
Answer:
Well several things, during sexual reproduction, by which DNA is passed from one generation of cells to the next. Also, bacteria use double-stranded DNA as their genetic material. So therefore there are 3 ways that genetic information is exchanged:
Conjugation, Transformation, and Transduction.
In conjugation, DNA passes through an extension on the surface of one bacterium and travels to another bacterium (Figure below). Bacteria essential exchange DNA via conjugation. In transformation, bacteria pick up pieces of DNA from their environment. In transduction, viruses that infect bacteria carry DNA from one bacterium to another.
The definition of earache is "<span>an ache or pain in the ear". </span>
