Vitamin niacin ( vitamin B3)
It would be A. Iron & Nickel.
Hope it helps you!:)
Answer: b. Muscles
A metazoa is a division of animal kingdom that includes all animals expect protozoa and sponges. Metazoa division includes multicelluar animals, which exhibit highly differentiated cells. They have muscular and nerve system and well coordinated tissues and organs. Locomotion requires a coordination activity of muscular, skeletal and neural system. It is mainly achieved by contraction and relaxation of muscles that occurs due to specialized muscle proteins named as actin and myosin which receives signals from nerves.
Hence, locomotion in metazoa is due to contraction of muscles.
True.
Overlapping food chain is a food web. A food web shows the many different paths plants and animals are connected. eg: A hawk might also eat a mouse, a squirrel, a frog or some other animal.
<span>This is coevolution. During this process, two species will, in a reciprocal fashion, affect the evolutionary pattern that each experiences. In this case, the rabbits developed a resistance to the virus, which caused the virii to lose their overall potency.</span>
