Answer:
Evolution is a process of change in a population through genetic variation over time Evolution involves change over time and descents from common ancestor
Enzymes in the liver cells <span>but
are also located in cells throughout the body or also known as Cytochrome
P450 (CYP450) are endogenous proteins in individuals that act as drug
metabolizing enzymes and also have endogenous enzymatic processes that are also
used to make cholesterol, steroids and other important lipids such as prostacyclins
and thromboxane A2 (metabolites of arachidonic acid).</span>
It was believed that a asteroid hit the Earth (specifically Mexico) when the asteroid hit it caused a freezing darkness due to dust and debris being kicked up by the asteroid . The dust and debris blocked the sunlight causing a temperature drop.
The element starts off as 100%. half of 100% is 50% and half of 50% is 25%. the element has emitted 2 times the half life which is 10,000 x 2 = 20,000
the fossil bone is 20,000 years old