Answer:
animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale
Answer:
Cell division is different in this type of multinucleated cells, in them there is mitosis but no cytosinesis or cytoplasm division. These muscle cells have nuclei in the periphery of the cell. In the life cycle of these cells there are successive divisions of all nuclei
The correct answer is option B
The structure of the sperm is divided into three parts head, body and tail. The head region consists of many enzymes and the tail region of the sperm helps in providing mobility to the sperm.
The structure of tail adds propelling movement by whipping and undulating the sperm. The sperm moves through the reproductive tract to reach the egg.
Answer:
uneven heating of the earth's surface
Capacity of cell nucleus is in the range of 10^-15
