Why should you use courtesy when driving?

a. courtesy drivers interact on the road and keeps traffic flow moving.
b. when driving, you are always surrounded by other road users.
c. traffic laws require you to be courteous to other road users.
d. all of the above answers are correct.

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.