Q: What promotes cell division and are necessary for growing plants in tissue culture? Choices: - polyamines - auxins - mitochondria - cytokinins A:
cytokinins

(Question)
Q: Body waves travel through the earth and arrive at seismograms before what? Choices: - sound waves - velocity waves - function waves - surface waves A:
(Answer)
surface waves

Ques: Q: Organic chemistry is the study of the chemistry of what? Choices: - hydrogen - metals - oxidation - carbon compounds A:
Ans: carbon compounds

(Q).
Q: Examples of what process are evident in many biological systems because cells are surrounded by semipermeable membranes? Choices: - reproduction - photosynthesis - apoptosis - osmosis A:
(A).
osmosis

Ques:Q: What theory brings together continental drift and seafloor spreading? Choices: - theory of order tectonics - theory of water tectonics - theory of front tectonics - theory of plate tectonics A:

Ans:theory of plate tectonics

Ques: Q: Descending fibers from the cerebrum have branches that connect to neurons in the pons. those neurons project into the cerebellum, providing a copy of motor commands sent to this? Choices: - neurotransmitters - umbilical cord - cerebral cortex - spinal cord A:
Ans:
spinal cord