Which of these conditions is a cancer of the blood cells that causes uncontrolled division of white blood cells, causing the number of cells to increase?

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Explain the significance of meiosis in sexual reproduction