A nucleotide is made of _______
a. sugar + phosphate
b. sugar + phosphate + nitrogen base
c. sugar + nitrogen base
d. phosphate + nitrogen base
Ans: b. sugar + phosphate + nitrogen base
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Which of the following sequences best represents the path blood takes through vessels as it leaves and returns to the heart?
a. heart capillaries arterioles veins venules arteries heart b. heart veins venules capillaries arterioles arteries heart c. heart arteries capillaries arterioles venules veins heart d. heart arteries arterioles capillaries venules veins heart
Chordates are associated with which anatomical structure?
a. central ring canal b. metanephridia c. visceral mass d. dorsal hollow nerve cord
The structural unit of compact bone. Consists of an elongated cylinder that runs parallel to long axis of bone. Acts as tiny-weight bearing pillars. Consists of lamellae.
What will be an ideal response?
Agostino Bassi demonstrated that a type of silkworm disease was caused by a fungus and proposed that many diseases are caused by microorganisms.
Answer the following statement true (T) or false (F)