Synapses in which gap junctions allow ions to diffuse quickly from cell to cell are called ______ synapses
A.
chemical
B.
electrical
B
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Which of the following statements about oogonia in human females is TRUE?
A. They undergo meiosis because they are sex cells. B. They undergo mitosis because they are sex cells. C. They are produced after a female child is born. D. They produce cells with 23 pairs of chromosomes.
Answer the following statements true (T) or false (F)
1. Neutrons and electrons are found in the nucleus of the atom. 2. Neutrons contribute to the atomic number of an atom. 3. Neutrons contribute to the atomic mass of the atom. 4. Electrons carry a negative electrical charge. 5. The number of electrons plus the number of protons is equal to the atomic number of an atom.
What is the region of the antibody that varies from antibody to antibody?
A) regional or R region B) variable or V region C) constant or C region D) stable or S region
The process by which a pressure forces material through a membrane is called ________.
Fill in the blank(s) with the appropriate word(s).