Which scientist worked with decks of cards to develop the arrangement of
elements on the periodic table?

A. Rutherford
B. Mendeleev
C. Bohr
D. Dalton

B. Mendeleev is the scientist who worked with decks of cards to develop the arrangement of  elements on the periodic table

Explanation:

The scientist who worked with the deck of cards to develop the arrangement of elements on the periodic table is Mendeleev.

Mendeleev wrote the each element data on a card and arranged them in the order of the atomic weights. One more way is to group them with the cards of identical elements. After that he combined the two rules along with his cards of 63 elements that were found at that time, like increase in the atomic weight  in each row as well as the elements of identical properties arranged in columns.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

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-lavira: )

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.