Only once because the DNA replication initiation is tightly linked to cell cycle progression,ensuring that replication occur only once per cycle
Answer:
adenine is the correct answer for first
Answer:
Humans, animals and plants depend on the cycle of cellular respiration and photosynthesis for survival. ... The process of photosynthesis is used by plants and other photosynthetic organisms to produce energy, whereas the process of cellular respiration breaks down the energy for use.
Explanation: