Answer:
D) mating
Explanation:
this is the only word that makes sense when filling in the blank
A geologist studies rocks and such
The genetic code is the relation between the sequence of bases in DNA (or its RNA transcripts) and the sequence of amino acidsin proteins. ... Genetic experiments showed that anamino acid is in fact encoded by a group of three bases, or codon. 2. The code is nonoverlapping
During transcription, DNA is transcribed into messenger RNA when the the base codes in DNA are copied. mRNA serves as the code for assembling amino acids in a certain order. Codons are nitrogen bases that are aligned to create amino acids, and it is these amino acids that form proteins through peptide bonds
The answer is option B "declining number and variety of the species in an area." Biodiversity is a variety of life for example a ecosystem has many species which makes it a biodiversity. Now a loss of a biodiversity would be loosing a huge amount of species in that area or ecosystem which would mean the answer is option B.
Hope this helps.