Animals can be classified into two main groups: vertebrates and invertebrates. The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. Examples of vertebrates include humans, birds, and snakes.
Answer:
Energy cannot be created nor destroyed.
So...
OB
Explanation:
Well... if the predator would become extinct, the population of the hunted will grow and reproduce. There for it would increase.
Pyroxene and plagioclases feldspar
45 feet
there are 3 feet in a meter
so we can find how many feet are in 15 meters by multiplying
15 x 3 = 45
