Chloroplasts (they are only present in plants)
Answer:
Bone.
Explanation:
Calcium is one of the important element present in the body. Calcium plays an important role in the muscle contraction. The calcium ions also acts as a signalling molecule during cell signalling.
The calcium is present in our extracellular fluids, bones, and teeth. The major constituent of calcium is present in the bone. The bone consists of around 90% body;s calcium.
Thus, the correct answer is option (b).
Explanation:
ATP is the short form of Adenosine Triphosphate. The molecule is made up of three basic things:
- Adenine ring
- Ribose sugar
- Three phosphate groups(triphosphate)
This molecule is provides the energy needed for life processes when broken down.
The elements that makes up ATP are:
- Carbon(C)
- Hydrogen(H)
- Nitrogen(N)
- Oxygen(O)
- Phosphorus(P)
Learn more:
ATP brainly.com/question/4957918
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In an ecosystem, two factors are being classified which are the abiotic and the biotic factors. Both of these factors play an important role in order to balance the ecosystem and maintain the harmony of the living things therein. The environment includes the abiotic factors which are the sunlight, weather, water, air, and all other factors which are not living but contribute to the growth and development of the living ones. For example, plants cannot live without water, sunlight and carbon dioxide. The effects that humans have on the environment is both good and bad. Humans also play an important role in maintaining the environment, and they also have the capability to endanger it.
