Answer:
The right option is; B) the total variety of organisms on Earth.
Explanation:
The total variety of organisms on Earth explains biodiversity
Biodiversity is the variety and variability of all species (different plants, animals and microorganisms) from all sources (marine, terrestrial and other aquatic ecosystem) on earth or within a particular region. Biodiversity involves genetic diversity, species diversity and ecosystem diversity which all functions together to form the complexity of life on earth.
(I truly do apologize if I am wrong)
Precambrian was when all life just started and lived in the ocean. They help us breathe oxygen making the species today live their life. I belive this the answer.
Wouldn’t it be as follows
TAC GGG AAT CTA CCA TTG
Because you have to match the other strand
Well the divergent boundary, occurs most often at mid-oceanic ridges. Here, two plates move away from each other, forming a break, or rift, in Earth's crust. Magma from the mantle rises to fill the gap, creating new crust.
Hope it helps