Fluorine is a nonmetallic, diatomic gas with the symbol F and atomic number 9. Atomic number represents the number of protons in the atom. When F is neutral it means that the number of protons is equal to number of electrons. But, when F is an ion (F-), the it has more electrons (10) than protons, meaning its an anion.
A. Basalt
Basalt is a fine-grained, dark-colored extrusive igneous rock composed mainly of plagioclase and pyroxene. The specimen shown is about two inches (five centimeters) across. Diorite is a coarse-grained, intrusive igneous rock that contains a mixture of feldspar, pyroxene, hornblende, and sometimes quartz.
Answer:
True.
Explanation:
In genetics, genetic similarities indicate the actual species. It also helps to identify the relationship or similarities between different species.
A physical character or structure can't be a measurement process of classifying any species as related to other species.
Such as Chimps is 90% genetically similar to human, but they not identical in physical appearance.
So, at present, scientists use genetic similarities between species to help classify them as related species, rather than focusing on physical or structure of any species.
<span>The synthesis (s) phase is characterized by DNA </span>replication
Explanation:
On a peripheral blood smear, normal RBCs are disc-shaped with a pale-staining central area called the central pallor. When judging red cell size on a blood smear, the classic rule of thumb is to compare them to the nucleus of a small normal lymphocyte. The normal lymphocyte nucleus has an approximate diameter of 8 µm.
