A fertilized egg receives 50% of its chromosomes from a sperm and 50% from the egg. Which process ensures that the sperm and egg contain only 50% of the chromosomes of an organism? A:fertilization

B:meiosis

C :mitosis

D :mutation

In what region did the industrial revolution began

Pre-tesi active how does the contractile vacuole in a single-celled organism function to maintain homeostasis?

Amain difference between state and federal courts is state courts try disputes between states, while federal courts try cases between citizens of a state. state courts try cases between citizens of a state, while federal courts try disputes between states. state courts consider the facts and law in making a decision, while federal courts consider the law, facts, and precedents. state courts consider the facts and precedents in a decision, while federal courts consider the law, facts, and precedents.