Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
DNA is the correct answer
Answer:
Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. ... There, the food is churned into a liquid mixture called chyme that moves into the small intestine where peristalsis continues. Stretching out a piece of intestine will make it easier to see the wave-like motion
Answer: This phenomena suggests that building an animal body will require a lot of precisely timed steps (building an animal body will involve a lot of steps, precision, and timings).
Explanation:
Scientists have discovered that the lifetimes of mRNAs( Ribonucleic acids) coding for pair-rule regulatory elements in Drosophila embryos may last only a few minutes. This discovery is telling us that if you go into the process of building an animal body, such process will involve a lot of timings and precision.
However, this is a very tedious task as it involves a lot of precision and timings. For you to accomplish such task you must not miss any step, also all the steps must be precisely timed.
Therefore, the discovery insinuates that building an animal body requires a sequence of steps which must be precisely timed.