Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
Lipase is an Enzyme protein that helps. break down fats in foods
<span>Fossil record, genetics, and examples of local adaptations all support the theory of evolution by natural selection.</span>
The difference<span> between the </span>birth rate<span> and the death </span>rate<span> of a country or place is called the </span>natural increase<span>. </span>
