Answer: The correct answer is option c.
Explanation:
Cardiac conduction system is formed by specialized cardiac muscle cells which enable the heart to contract in coordinated fashion.
The main component of this system are:
- Sinoatrial node
- Atrioventricular node
- Bundle of His
- Branched bundle
- Punkinje fibers
SA node consists of cells known as pacemaker cells. These cells spontaneously generate action potentials which lead to the contraction of atria.
These potentials are then passed to AV node which relay them to bundle of His. These bundles are branched into right and left bundle which ultimately transfer these potentials to Purkinje fibers.
The potentials from these fibers lead to the contraction of ventricles.
Your answer is A: these two organisms have the same amino acid sequences, which suggests common ancestry
<h3><u>Answer</u>;</h3>
Brain imposing its own structure on incoming information based on previous experience
<h3><u>Explanation</u>;</h3>
- Top-down processing is the perceptual processing which memory and other cognitive processes are required for interpreting incoming sensory info.
- It involves use of knowledge that people have gained from prior experience with stimuli to perceive them. The information processing is guided by our experience and expectations.
The have similar problems because since the cell has grown too large, it takes away nutrients that other cells need to survive. This is similar to too many users on a wireless network because with too many users, their is not enough network to supply each device on the wireless network.
