Charles Darwin and his son experimented with which plant growth response?  

A.  gravitropism
B.  circadian rhythms
C.  phototropism
D.  heat shock
E.  thermotropism


C.  phototropism

Biology & Microbiology

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Fluid-filled sacs that may store amino acids, sugars, toxins, and ions in plant cells are called ____

a. plastids b. central vacuoles c. peroxisomes d. vesicles e. Golgi bodies

Biology & Microbiology

Vlad, 28 years old, is a slender, jumpy man with eyes that seem to bulge out of their sockets. His heart rate is unusually fast. Which of the following conditions does Vlad most likely have?

A) Addison's disease B) acromegaly C) Cushing's syndrome D) Graves' disease

Biology & Microbiology

The site of gravity perception in roots is the root apical meristem

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

Cholesterol is a necessary component of the plasma membrane of all animal cells.

Answer the following statement true (T) or false (F)

Biology & Microbiology