Answer:
Option D.
Explanation:
Crossing over is an important characteristic of meiosis which provides the genetic variation and various allelic combinations present in the offspring. Hence the answer is option D.
Yes, these are considered organs. The skin and the bones both fall under the definition of an organ.
Answer:
The correct answer is - all of the above.
Explanation:
If the cold and warm front collide the warmer air rises and colder air moves to the bottom due to the density of warm air is less than cold air which creates a front that is the boundary front of both fronts.
It forms a new front called an occluded front. The occluded front causes heavy precipitation, strong winds. and snow sometimes. In low pressures it also caused tornadoes.
Answer:
D
Explanation:
It is often like this: cell->tissue->organ->system
