Which of the following is not true about the immune system?
a
it sends signals to the brain.

b
it destroys infected cells.

c
it does not work with other systems.

d
it consists of cells, tissues, and organs

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.