(a) Name the scientist who gave the laws of inheritance.
(b) Name an animal in which individuals can change sex. What does this indicate ?
(a) Gregor Mendel (b) Snails. This indicates that sex is not determined genetically in some animals.
Name the scientist who gave:
(a) Law of conservation of mass.
(b) Law of constant proportions.
State the modern periodic law. Name the scientist who stated this law.