Answer:
The nucleus, cell membrane and cytoplasm.
Explanation:
The nucleus, cell membrane and cytoplasm are three elements that cannot be absent in a cell because they are necessary for the survival of the cell. The nucleus controls and regulates the activities happening inside the cell e.g. growth and metabolism etc. Cell membrane acts as a wall to protect the inner part of the cell from the external environment as well as allows nutrients and gases inside and outside the cell. Cytoplasm serves as a medium for the conduction of nutrients and waste from on place to another and also for the medium for organelles in which they floats.
Answer:
When a cell was examined under a microscope, it was found that it did not have a cell wall . It has a cell membrane which shows the viewed cell under microscope is an animal cell
Explanation:
Only plant cell has cell wall which gives rigidity and shape to the cell unlike animal cell which has a cell membrane. The cell would comprise of chloroplast, nucleus, golgi apparatus, mitochondria among others
Answer:
B. The Edict of Milan helped spread Christianity by allowing all religions in Rome.
D. He believed that locating the capital in an area that had more trade and business would ensure the future of the empire.
Explanation:
The great achievement of reign of Constantine is the Edict of Milan that helped in spreading of Christianity in Rome. He was the first roman emperor which profess the religion of Christianity in the year 313. This proclamation legalized the Christianity religion and allowed all people of Rome the freedom of worship throughout the empire. Constantine move the capital of the Roman Empire because he wanted that the capital will become the economic, cultural hub and center of the east.
The answer to this is a group of individuals many species living in an area.
Answer:
Hydrogen bonds provide higher surface tension to a liquid. If you disrupt hydrogen bonds, surface tension will decrease. That's why at high temperature, surface tension is lower due to disruption of hydrogen bonds. Hydrogen bonds can be disrupted by the addition of surfactants and surface tension can be reduced also. Detergent is a surfactant because it interferes with the attractive forces between the water molecules.
