As the human population rises, more and more forests and other habitats of animals are being destroyed to make room for the increasing population of humans. Such activities has led to the extinction of many species as their habitats are being destroyed completely. Some of the plant and animal species are at the verge of extinction because their habitats have been destroyed.
Humans should help increase the population of the endangered species by making habitats for them. For example, Salmon fish is one of the most consumed fishes by humans. Nowadays, some of the countries have artificially made aquacultures to raise these fishes before they become endangered or extinct.
The answer is muscle cells. This is because they are responsible
for either voluntary movement (skeletal muscle) or involuntary movement (smooth muscle). This movement requires energy to
power the movement of the actin and myosin action
that is the core of every muscle. Each myosin has an ATP-binding site.
She should make observations next. If she doesnt make observations, it would be difficult to form a hypothesis and design an experiment, the result will more likely to be inaccurate too.