The speed of sound is altered by the? a. pitch of sound b. loudness of the sound c. device producing the sound d. material transmitting the sound

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.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Spirochetes have a twisting and flexing locomotion due to appendages called