As we move across the periodic table of elements, certain trends are evident. The placement of individual elements in the periodic table allows us to predict many characteristics of elements such as state of matter at room temperature, reactivity, and
valence electrons just to name a few. As one moves from left to right across the periodic table, what trends are evident?
A)
Atomic radius increases moving left to right.
B)
Nonmetallic character increases moving left to right
Electron affinity increases across the periodic table.
D)
Elements change from solids to liquids and then gases.
E)
Most reactive elements on left and least reactive on right.

Which of the following is an oxidation-reduction reaction? (pictured below)

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i.e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?