Answer:
Pacemaker cells are located in the <u>sinoatrial node.</u>
Contractile cells are located in the <u>Heart</u>
Explanation:
The right answer is C.
Synovia is a viscous biological fluid located at the joints and fulfilling several functions. It limits bone friction between them, dampens shocks, provides the nutrients and dioxygen necessary for chondrocytes (cartilage cells) while eliminating their metabolic waste, and benefits from the presence of immune cells to eliminate possible body foreigners.
Answer: through somatic cells or inherited through the germaine.
Explanation: My best guess
This behavior represents the dormancy.
Dormancy is a period in life cycle of an organism when growth, development, and physical activity are temporarily stopped. Period of dormancy minimizes metabolic activity of an organism and therefore helps them to conserve energy. So, aquatic burrowing frogs get into energy-saving mode as long as resources are scarce.
The atmosphere is a mixture of gases that surrounds the earth
