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. pancreas
b. spleen
c. kidney

Gregor mendel was the first scientist to use statistics to analyze scientific data before mandel's experiments, scientists believed that organisms acquired traits from their environment and pass them on to their offspring after mendel's discoveries were accepted scientists realized that traits passed to offspring were the result of genes being passed from parent to his parents this is an example of

When plants use sunlight to make food, the energy of sunlight is

What is gene expression control that occurs after the generation of rna