The reason biologists believe that green algae and land plants, both members of the supergroup Archaeplastida, are related is because both of them possess chlorophyll a and b, as well as cell walls made of starch.
Answer the following statement true (T) or false (F)
False
Although both green algae and land plants possess chlorophyll a and b , their cell walls are made of cellulose.
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what disease is caused by Filobasidiella neoformans?
What will be an ideal response?
The proteins that enable the HIV virus to bind to cells are typically CD4 and CCR5. On what type of cells are these proteins typically observed?
A) plasma cells B) dendritic cells C) effector helper T cells D) memory helper T cells E) both C and D
Cell-mediated immunity is directed by:
a. B cells, which secrete antibodies. b. T cells, which secrete antibodies. c. macrophages, which produce histamines. d. B cells, which react with APCs. e. T cells, which react with APCs
A circuit of neurons that helps in the automatic response to a stimulus is a(n) ________
Fill in the blank(s) with correct word