A student was studying a prepared slide of human cheek cells under a compound light microscope. The diagram represents what the student observed on the slide at a magnification of 100×. Identify the shaded structure shown in each cell in the diagram.

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Hydroelectric uses moving water to do work such as grinding grains in a mill true or false

Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?