Which of the following is a surface barrier to infection? skin antibodies antigens lymph nodes

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.