The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas, suggests that
a) ecosystems are interconnected and human action can alter ecosystem equilibrium
b) recycling programs have failed to conserve biotic resources
c) natural processes can alter ecosystem stability
d) direct harvesting practices have led to irreversible destruction of ecosystems

the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation: