Explanation:
Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:
Due to environmental conditions.
Explanation:
With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.
Answer:
D.
Explanation:
The immune system lowers the chances of bacteria, viruses, and diseases entering your body
<span>The grouping of organisms based on their common descent is called evolutionary classification. Through evolution, one species has changed and become modified until it became what it is today. However, some of today's organisms have the same predecessor, which is evident if you take evolution into consideration. </span>
One of the daughter cell would have an extra chromosome while the other would be short one. It's called nondisjunction
