Answer:
i think it is end the meeting.
Afferent or sensory neurons collect stimuli received by receptors throughout the body, including the skin, eyes, ears, nose, and tongue as well as pain and other receptors in the internal organs. Sensory information is transmitted, which includes the brain and spinal cord.
Answer:
If something happens to one friend you have another one that can help you. The more people you're with, the safrer you are.
Explanation:
The statement that is true is that
there are a number of chromosomes on a given gene; all of these actively code for proteins. The role of proteins in a
chromosome is for gene transfer. The gene transfer found in the DNA happens
during mitosis. <span>Chromosomes
are inherited from the parents. One chromosome from each of 23 pairs came from
each of the parents. The two chromosomes of a pair (except for the sex
chromosomes) contain the same genes, but the genes have small differences. The
X and Y Chromosomes determine the organism’s sex. </span>
Answer:
1. spontaneously
2. resting potential
3. action potentials
4. pacemaker potentials
5. K+
6. Na+
7. into
8. Ca+
Explanation:
Pacemaker cells (also known as sinoatrial node cells) are cells that generate rhythmic impulses and set the pace for blood pumping in the heart. These cells have the ability to rhythmically depolarize and initiate action potentials. In pacemaker cells, Ca2+ and Na+ levels are higher in the extracellular environment, while K+ concentration is higher intracellularly. The pacemaker action potentials have three phases: 1-depolarization, where membrane potential reaches -40 mV and voltage-gated Ca2+ channels open, 2-repolarization, where voltage-gated Ca2+ channels close and voltage-gated K+ channels open, and finally 3-gradual depolarization, which is caused by the slow influx of Na+ ions.
