The mitochondria is the powerhouse of the cell!
Answer:
No, I don't agree with the statement that some organelle are not important in the cell.
Explanation:
Every organelle which is present inside the cell is very important because each organelle performs a specific function. Without these organelles, cell cannot perform their functions properly. For example, mitochondria is the power house of the cell which produces energy for the cell. Ribosome is responsible for the production of protein. Lysosomes helps in the removal of waste products from the cell.
Changes in mitosis, crossing over, random fertilization and random arrangement in meiosis.
<u>Explanation:</u>
Genetic diversity of sexually reproducing organisms are controlled by many factors and they are - changes in mitosis, crossing over, random fertilization and random arrangement in meiosis.
During crossing over, the sister chromatids of homologous chromosome crossover and exchange their genes which leads to recombination eventually causing genetic diversity.
Random fertilization of male and female gametes leads to the formation of zygote having the genetic content of both maternal and paternal gametes causing variation.
Environmental factors also causes some change in with time.
La respuesta es Oxígeno.
Lo siento si no estoy claro, estoy usando un traductor.