The immune system protects the body against foreign substances and disease-causing organisms. The immune system is made up of many different types of special cells, tissues, and organs. Which of the organs pictured above plays a major role in the immune system?
A.
gall bladder
B.
kidney
C.
spleen
D.
pancreas

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

What is the surface temperature of the ocean where hurricanes form? greater than 80 celsius approximately 27 celsius at least 76 celsius less than 10.5 celsius

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants