Some life cycles are the same like complete and incomplete metamorphosis.
You are right it’s D
Wish you luck
A hypothesis is considered scientific if it has something that can be supported or refuted through carefully crafted experimentation or observation
Muscle cells do not form different types of tissues, the muscle tissue is one of the 4 basic categories of tissues found in humans
Temporary changes would be weather, since it can change at any givin time another example would be tides coming in because they vary by day, or wet sand becoming dry sand!