I would say A.
B and C can be eliminated because they have to do with using resources more efficiently. Now we're down to A and D, and of the two, I'd say A is most plausible. Globalization is the connection of the world with each other. With all this technology, companies see endless possibilities to sell their products. They use more and more natural resources, which can deplete those resources quickly.
Energy is transferred with 90 percent less than the previous amount. For instance, producers start with 100 percent of energy considering they, well, produce the energy. Then, an herbivore comes and eats said producer, but only receives 10 percent of the energy. And so on and so forth as energy decreases as more consumers come along, which is why those at the top of the food web/chain typically eat more.
Hope this helps!
B. Frequent due to fighting between bats
:)
The products of semiconservative replication for a double stranded DNA molecule are two double stranded DNA molecules, one side of both strands being the old strands that were separated and used as a template and the other side of both strands being the nucleotides that were placed on the template strand.
