The letter "A" in the above figure represents
a. pericycle
b. endodermis
c. primary xylem
d. root cortex
e. primary phloem
D
You might also like to view...
If DNA replication took place from one end of the largest human chromosome to the other, it would take approximately:
A. 2 seconds. B. 2 minutes. C. 2 hours. D. 2 days. E. 2 months.
Match the following nerve locations or functions with the correct division of the autonomic nervous system (sympathetic or parasympathetic) by writing an "S" or "P" next to the phrase
______ accelerate heart rate ______ decrease heart rate ______ dilate pupil ______ constrict pupil ______ stimulate activity of stomach and intestines ______ inhibit activity of stomach and intestines ______ relaxes lung bronchi ______ constricts lung bronchi ______ nerves branch from middle region of the spinal cord ______ nerves branch from the brain and the posterior region of spinal cord What will be an ideal response?
The maintenance of the volume and composition of
body fluids is the primary responsibility of which system? a. integumentary b. immune c. digestive d. urinary e. circulatory
According to Kluyver and van Niel, which of the following are true of basic biochemical reactions?
A. They are shared by all living things. B. There are an unlimited number of them. C. They primarily involve the transfer of electrons and ions. D. Basic biochemical reactions shared by all living things primarily involve transfer of electrons and hydrogen ions. E. They primarily involve transfers of chemical groups.