Answer:
Nitrogen fixing bacteria is the organism which is responsible for the fixing of atmospheric nitrogen for the plant.
Explanation:
Nitrogen fixing bacteria is a type of bacteria which fixes atmospheric nitrogen into ammonium and nitrates form. Plants are unable to take atmospheric nitrogen so it must be converted into available form i. e. nitrates and ammonium. Examples of nitrogen fixing bacteria are Cyanobacteria and Azotobactor etc.
Answer:
1. Egg fertilized to form a zygote
2. Cell division in the zygote to form a morula
3. Cell division to form a blastocyst
4. Differentiation of cells in the blastocyst
5. Development of tissues
6. Development of organs
Explanation:
I think A because the liver filters out wastes from the blood, and so without the liver the wastes would build up and be dangerous for the body.
DNA replication allows the basic units of heredity found on segments of DNA called genes to be passed from parent to offspring.
