An atom of element A has 15 protons. What would the element's atomic number be?

The digestive system absorbs nutrients from food

Along with plants and algae, in which organisms can photosynthesis occur?

Under what two types of plates is the oceanic lithosphere being subducted?

How is Probability related to heredity?

Evolution is: A) A change in the composition of a population from one generation to the next. B) A phenomenon that must be inferred from evidence, because it cannot be observed directly.

The enzyme that is used to join complementary dna nucleotides together is

Choose which way of evolution caused the FQ antibiotic resistance.

Determine the ionic characteristics of this element. calcium

The first step in the catabolism of amino acids is the removal of the nitrogen as ammonia, forming a keto acid that can enter one of the carbon catabolic pathways.

How is free oxygen allowed life to expand on land