What was the phenonmenon that is causing the bean seedling to bend?

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

How secretion and excretion both are different? explain in simple language.

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?