Using the dichotomous key, which class does this animal belong to?
~a. amphibia
~b. mammalia
~c. fish
~d. reptiles

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.

What does the number 18.9984 represent in the image?

Lupe is a carrier for color blindness. her husband clifford is colorblind. if lupe and clifford have four children, what's the probability of a boy being colorblind?