The correct answers are as follows:
1. C.
Cells have the capacity to divide and reproduce other cells, this feature makes it possible for them to reproduce and given birth to offspring. Cells can divide through two major ways, these are mitosis and meiosis. Cell division by mitosis give rise to two identical cells while cell division by meiosis give rise to four daughter cells.
2. B.
Vacuoles in cells have functions that are corresponding to that of human lungs. The human lungs are the ones responsible for conducting oxygen from the air into the body through the nose and mouth, thus allowing the oxygen to enter the blood, they also move out carbon dioxide, which is a waste product from the blood into the external environment. Vacuoles in cells perform similar functions by gathering and storing waste products, which are eventually released to the external environment. Vacuoles also function in maintaining the right pH in the cell.
The ecological community can be defined as a group of different species, which are dependent on one another in a particular location. The ecological community only include the flora and the fauna, it does not include the abiotic factors, such as air, water, soil or climate. So, deer, wolf and trees are the components of a forest community.
Both of them are correct.
Methane is an explosion hazard in enclosed areas. Liquefied Methane floats on water and boils. The vapor cloud produced is FLAMMABLE
In landfills, the food and yard waste that trash contains is decomposing and releasing methane, a greenhouse gas that's 28 times more potent than carbon dioxide.
It's called Node of Ranvier.