Answer:
D. As the pH decreases, the number of surviving species decreases.
Explanation:
According to the table, there is only one species that survives a ph of 4.0 and 4.5 in the pond, while every ph value above that has multiple species that survive in its condition.
Only once because the DNA replication initiation is tightly linked to cell cycle progression,ensuring that replication occur only once per cycle
Pollen grain, embryos, seed coatings, and megasporangium.
Photosynthesis occurs at the highest rate under the most intense light
