Step one you should have a clean slide and coverslip, step two is you place ONE drop of water in the middle of the slide, step three place the edge of a cover slip on one side of the water drop, step four cover the slip on top of the drop at a fourty five degree angle, step five place the slide on the stage and view it at first with the red banded objective, you can rotate the nosepiece to view the slide with different objectives.
These type of spider occur in florida
Answer:
Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.
Explanation:
Answer:
The correct answer is B. Isotopes of an element differ in the number of neutrons.
Explanation:
Isotopes are atoms of the same chemical element, and therefore with the same number of protons, in which the number of neutrons in the atom core differs. According to current models, an atom consists of an atomic nucleus surrounded by a cloud of electrons. The core consists of a number of protons and a number of neutrons. The number of protons determines the atomic number of the element and also the chemical properties. The number of neutrons determines, among other things, the stability of the nucleus and, together with the number of protons, the atomic mass. Two atoms with the same number of protons but a different number of neutrons are called two isotopes of the same element.