The cells of SA node acts as the heart's peacemaker which establishes the pace for cardiac activity.
Sinoatrial node is also called sinus node.
SA node is termed as a group of cells which are located in the wall of the right atrium of the heart. Cells have the ability to produce electrical impulse. It travels to the heart via electrical conduction system which causes it to contract.
It produces action potential and also sets the rhythm of the heart.
Answer:
Not Healthy
Explanation:
Because the Fact that you said "aquatic ecosystem" changes the statement. Even though that this dam is hydroelectric, It doesn't benefit Aquatic life very much. Garbage does not come from electricity. No matter how it is made. You may get toxic gases, But not garbage. The warm water can kill the fish who may need a stable condition if no mutations occur. It can attract new praetors or fungi also.
<span>The embryonic period is the most important phase of development for organ formation. The embryonic period in humans begins at the moment of fertilization and continues until the end of the tenth week of gestation. Rapid growth and differentiation occurs during this period, which produces varied cell types.</span>
Answer: B. Chromosomes
Explanation: Chromosomes become visible, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears. Chromosomes become more coiled and can be viewed under a light microscope.
