Answer:
The amount of movement of tectonic plates causes the Pacific Ring of Fire to have so many volcanoes.
Explanation:
The ring of volcanoes that is present around the Pacific Ocean which is formed due to the subduction of oceanic plates that lies beneath the lighter continental plates.This region contains most of the volcanoes because of the of the larger part of the subduction zone of the earth .
The plate that is present underneath is pushed down, or subducted by the plate above. As rock is subducted, it melts and becomes magma. The abundance of magma so near to Earth’s surface gives rise to conditions ripe for volcanic activity.
Answer:
They allow for automatic biogeographic isolation
Answer:
1. grow
2. Stimuli
Explanation:
the first sentence talking about getting bigger = grow and the second sentence talking about swimming = Stimuli doesn't make sense if you say. swimming is grow and the other VS
Correct answer: Option D- DNA ligase
Explanation: In option A, thymine is a nucleotide, so it is present throughout the replication process, wherever it is required. It is added to the newly formed DNA. In option B, Helicase enzyme is active during initiation and elongation stage, as it facilitates the opening of the winded DNA strands. Option C is nucleotidase and it has no role in DNA replication. So, the correct answer is DNA ligase, which is option D.
The okazaki fragments formed during DNA replication are sealed at the end. And in this step, DNA ligase is used. It catalyzes the formation of phosphodiester bond between the nucleotides of okazaki fragments. So it is the last active molecule of the process.