A scientific model can be used to test a hypothesis.
Answer:
carry thousands of genes
Explanation:
Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. Some traits are caused by mutated genes that are inherited or that are the result of a new gene mutation.
Answer:
Hydrogen and part oxygen
Explanation:
Water is composed of these two which makes the symbol H20
