Answer:
True
Explanation:
B cells are involved in the humoral immune response and T cells are involved in the cell-mediated immune response. Class 1 MHC molecules are found on all uncleared cells and class 2 MHC molecules are found on macrophages, B cells, and activated T cells.
The male sperm determines whether it is a girl or a boy, if it has XX chromosomes it is a girl if it has XY chromosomes it is a boy. Males can only receive Y chromosomes from their fathers.
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Answer:
Technology is necessary for scientists to perform experiments is the correct answer
Explanation:
Answer:
Through the use of The Endangered Species Act (1973). Alsom national parks are federal, not state land; therefore, the national government can control them.
