How do you find the phenotype's for the shape of neck for mules?

What is the correct flow of depolarization in the heart?

natita [175]

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.

4 0

3 years ago

Just need help on question e please :) it’s due tomorrow

3241004551 [841]

Answer:

it's related to the factors of diffusion, in this case...

the molecule is small, the mass of it is a factor of diffusion, since it's smaller, it can diffuse quickly, since it has less weight, so it moves faster.

When the cell increases in size, the volume increases faster than the surface area, when there is more volume and less surface area, diffusion takes longer and is less effective.

8 0

3 years ago

All unicellular organisms are prokaryotic. True or false

drek231 [11]

Answer:

TRUE!! All prokaryotic organisms are unicellular.

Explanation:

8 0

3 years ago

Why do biologists study bacteria ?

andre [41]

Answer:

Today: Monday, 12 October 2020

Hour: 06.41 WIB (in Indonesia)

__________________________

because bacteria are included in one of the branches of biology, that is microbiology. Biologists learn about the benefits of bacteria in human life as well as the bad effects caused by certain bacteria

6 0

3 years ago

The treatment phase for substance abuse generally consists of:

Schach [20]

Answer:

D. All of these are correct.

Explanation:

Depending on the institution, substance-abuse treatments may vary in regard to duration and phases. Generally, treatments for substance abuse consist of four phases:

Initiation: This first stage focuses on providing helpful information to the person/patient about all treatments and options. During this phase, the person goes through a process of detoxification, that is, preventing them from using the drug to remove their dependence.
Abstinence - first phase: This stage is one of the most difficult ones as the person usually exhibits a variety of emotions associated with depression, sadness, anxiety because of the withdrawal of the drug. During this phase, they received psychological help to prevent any relapse and to become more stable, that is, to control drug cravings.
Abstinence - second phase: This stage is focused on maintaining abstinence and stability. In conjunction with the second phase, this is also difficult but rewarding. The person receives behavioral therapy so he/she can acknowledge how the drug intake resulted in numerous issues and, in contrast, stopping its use can change her/his life in a diversity of positive ways.
Aftercare: This stage focuses on long-term goals and, through therapy and counselling, helps the person to obtain education, find a job, and continue their stability and abstinence.

7 0

3 years ago