Answer:
it increased so fast because as more and more came to be, their genes evolved to allow them to adapt to their surroundings and prededators which allowed them to live longer, strive in the envirnoment and make even more babies.
Explanation:
Answer:
To measure motion, you must be able to compare it to a reference point, or a non moving point.
Answer:
don't know for sure sure but i would think branching
Explanation:
I think this cause of subspecies ( Bengal, Sumatran and Siberian tigers)
In developed nations people have more fast food options which lead to cardiovascular disease. As well as screen time all day since this is one of the factors of cardiovascular disease. Undeveloped nations don't have fast-food or television to watch all day, since they play outside.
