Help me please with an explanation Two segments of DNA are shown in the diagram below.
TWO DNA SEGMENTS
Old strand
GGT CA
T
сс A GT
1
G GT CA
11
CC GGT
Now strand
Normal thymine (T) is found in the old strand. It is
replaced by an abnormal molecule (T*) in the new
strand. The abnormal molecule (T) binds to guanine
(G) instead of binding to adenine (A). This is an
example of
A an adaptation
B. protein synthesis
Ca mutation
D binary fission

thats hard

Explanation:

sorry, but you do not have posted the diagram.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.