Answer: They Reproduce and have Genetic Material
Answer: B
Explanation:The energy needed by living things comes from the sun. Every ecosystem depends on green plants to trap the energy in sunlight and change it into chemical energy. The process by which green plants convert the sun's energy is called photosynthesis.
Answer:
The microscope is an instrument used for the visualization of the cell and its other component. Different types of microscope are compound microscope, electron microscope and binocular microscope.
The adjustment of the slide is important to visualize the focused object. A proper source of light is required to focus the image. At high magnification, the fine focus control is used for the adjustment. At 100 X the oil is used to visualize the object.
Answer:
Oxygen was not present on early earth
