PLZ HELP Read the selection from the section "Where The Meteor Showers Happen." Then, fill in the blank.

Meteors make it through the exosphere and thermosphere without much trouble. In these layers, there is not enough air to stop the meteors.

The phrase "without much trouble" in the selection above tells the reader that .

A
meteors often have a difficult time traveling through the exosphere and thermosphere
B
meteors are able to easily travel through the exosphere and thermosphere
C
meteors heat up quickly when they travel through the exosphere and thermosphere
D
meteors usually stop traveling when they get to the exosphere and thermosphere

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?

What maintain homeostasis when a persons internal body temperature is 97.5°f

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies