Answer: Hello, a thing that is composed of two or more separate elements; a mixture.
Explanation: A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound This can help you find the answer cause i cant see the answer chocies
Answer:
The answer to this question is energy.
Explanation:
All the natural processes taking place on this Universe requires Energy. We have energy stored in different forms in all objects on earth. Like chemical energy is responsible for different chemical reactions for example the formation of ATP in living organisms. Thermal energy that is present in the form heat and Kinetic energy is present in moving objects. Energy can not be created or destroyed. However it can be change from one form to another. That's how all the processes on earth keep going.
Answer:
Professional gardeners often soak seeds in hydrogen peroxide before planting them in order to increase the germination percentage or to reduce germination failure. When the seeds are soaked in hydrogen peroxide, the seed coat becomes soft and enzymes present in the seed becomes active. Due to soaking of seeds, the seed takes less time to germinate. So that's why gardeners uses this method.
The type of protein that plays an important role in transmitting signals in the nervous system is : A. Ion channel membrane proteins
The opening and closing of ion channel membrane proteins leads to changes in membrane potential which conducts information over an axon or synapses
hope this helps
Answer:
Les cellules humaines ont un nombre de 46
