Answer:
The answer is A solids! I hope you have a blessed day my cool friend
Explanation:
This is because the GP120 protein
of the HIV virus that forms the ‘knob’ is
essential for the infection of CD4 cells
of the immune system by the virus. The glycoprotein is, therefore, a good
target for vaccines especially since the
molecule is highly conserved because most mutations in the region could be highly deleterious to the virus.
The information collected from observations by scientists is primary data
The Calvin Cycle, of which carbon fixation is the first step also occurs as part of the LIR and takes place in the stroma.
Answer:
Cell was first discovered by Robert Hooke in 1665.
Explanation:
the procedure can be found to be described in his book Micrographia. In this book, he gave 60 'observations' in detail of various objects under a coarse, compound microscope. One observation was from very thin slices of bottle cork.
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