Where would you expect the air pressure to be greatest in a valley?

Biology

2 answers:

fredd [130]4 years ago

7 0

At the bottom as there is more air to to press down from the top of the atmosphere

Vlada [557]4 years ago

7 0

The best answer would be:

The bottom of the valley.

If you'd like to know more, read on:

Air always pushes down on you. Think of it this way, the higher you go, the less air is above you, the lower you go the more air is above you. Although air is gas, it is still pulled by the gravity of the Earth. As you go closer to the surface of the Earth, the pull of gravity gets stronger and this happens to air particles too. So air closer to the surface of the Earth are more tightly packed, thus creating more pressure. On the flip side, as air goes further away from the surface of the Earth, they start to split further apart, creating less pressure.

You might be interested in

What is an example of a prokaryotic organism? BACTERIA ALGAE MUSHROOM

Papessa [141]

Answer:

the example of prokaryotic organism is bacteria

8 0

3 years ago

Read 2 more answers

Muscles are ______ and built up throughout life with new muscle tissue?

Alik [6]

Muscles are repaired and built back up throughout life with new muscle tissue.

5 0

3 years ago

View the animation below, then complete the quiz to test your knowledge of the concept. conducting of the heart

valina [46]

1. In the heart, an action potential originates in the (E) sinoatrial node.
The cardiac action potential is a term referring to the change in the membrane potential of heart cells causing the heart to contract. Cardiac action potentials are created by a group of specialized cells capable of generating automatic action potentials and are located in the right atrium of the heart. These cells are called sinoatrial node and sometimes are referred to as the natural pacemaker of the heart. This characterization originates from the fact that sinoatrial node continuously provides action potential and sets the rhythm of the heart function.

2. The sequence of travel by an action potential through the heart is (A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
As explained above, the cardiac action potential originates from the sinoatrial node. This action potential then travels through the atrioventricular node, which belongs to the electrical conduction system of the heart and is located between the atria and the ventricles. It is responsible for the electrical connection between the right atrium and the right ventricle. The action potential then travels to the atrioventricular bundle (or bundle of His), another part of the electrical conduction system of the heart. The atrioventricular bundle transmits the electrical impulses from the atrioventricular node to the bundle branches. The bundle branches then send the signal to the Purkinje fibers which send the electrical impulses to the ventricles, causing them to contract.

3. The correct answer is A.
The generation of an action potential in the sinoatrial node causes the contraction of the atria. When the action potential passes from the sinoatrial node to the atrioventricular node, it slows down. This causes the transport of the electrical impulse from the atria to the ventricles to slow down. This delay enables the blood (from the contraction of the atria) to fill the ventricles before their contraction.

4. This statement is true.
The interventricular septum is a structure which divides the two ventricles of the heart and it is composed of two branches, the left bundle and the right bundle branch. When the action potential reaches the interventricular septum, it then travels to the apex of the heart from where it travels upwards along the walls of the ventricles and the ventricular contraction begins.

5. This statement is true.
The bundle branches gradually become Purkinje fibers located in the interior of the ventricular walls. Purkinje fibers are specialized cells and are responsible for conducting cardiac action potentials from the bundle branches to the ventricular walls. This signal transduction causes the muscle of the ventricular walls to contract.

7 0

3 years ago

comparative profile for covid-19 cases from china and north america: clinical symptoms, comorbidities and disease biomarkers

Hatshy [7]

Different people are affected by COVID-19 in various ways. The symptoms experienced by infected individuals have ranged widely, from little discomfort to serious sickness.

The susceptibility to and prognosis of severe acute respiratory syndrome caused by coronavirus 2 or coronavirus disease 2019 (COVID-19) have been found to vary greatly amongst individuals and populations.
Intervention in public health must take into account these variations and how they affect susceptibility to infection and the severity of disease.
The distinctions between the COVID-19 case profiles from China and North America may be due to regional variations in host, environmental, and healthcare-related factors.
These inter-population variances, together with intra-population variability, highlight the need to identify how health inequities and inequalities affect the public health response to COVID-19 and can help with preparing for the epidemic's resurgence.

Learn more about the COVID-19 with the help of the given link:

brainly.com/question/28391554

#SPJ4

6 0

2 years ago

Traits that are sex-linked are carried on_____

mestny [16]

x or y because both can cause it

4 0

4 years ago