Select all that apply.

Why do you only hear the phrase “It’s not the heat, it’s the humidity,” in the summer months?

FinnZ [79.3K]

The answer is B. this has to be 20 characters long.

6 0

3 years ago

Testing your ability to recall information you have just studied improves your long-term retention of that information. Psycholo

tatiyna

Answer: The testing effect

Explanation:

The testing effect can be generally used to find out that long-term memory is generally increased when a bit of the (adapting)learning period is spend towards retrieving what is to be retained in the brain.

This effect is often referred as practice testing or retrieval practice. This is required to test what is retained in the brain which was studied over a long time back.

This effect is known as the testing effect.

5 0

3 years ago

The heart is a cone-shaped muscular organ located within the ________ of the thorax. its apex rests on the ___________ and its s

Arte-miy333 [17]

The heart is a cone-shaped muscular organ located within the mediastinum of the thorax.

The mediastinum is the space lined with membranous tissue between the lungs. The mediastinum contains not only the heart but also the great vessels (pulmonary artery, aorta, pulmonary veins, and the superior and inferior vena cava), as well as parts of the esophagus and the trachea.

Its apex rests on the diaphragm and its superior margin lies at the level of the 2nd rib.

The apex of the heart is the conical area created by the confluence of the ventricles, but mainly by the left ventricle. It rests on the diaphragm. The superior margin of the heart, also known as the base, lies at the level of the second rib.

Approximately two-thirds of the heart mass is seen to the left of the midsternal border.

This is because to the left of the midsternal border lies the left ventricle which comprises most of the heart mass as the left ventricle is the one responsible for pumping blood throughout the systemic circulation and significant pressure should be overcame; resulting to the physiologic hypertrophy of the left ventricle.

The heart is enclosed in a serosal sac called the pericardium. The loosely fitting double outer layer consists of the outermost fibrous pericardium, lined by the parietal layer of the serous pericardium.

The pericardium is one of three layers of the heart (other ones being the myocardium and the endocardium); and is the outer layer of the heart. The pericardium is composed of two tissues, the fibrous pericardium and the serous pericardium. The pericardium functions to lubricate the movement of the heart by the action of the pericardial fluid.

The heart has four chambers. Relative to the roles of these chambers, the atria are the receiving chambers, whereas the ventricles are the discharging chambers.

The four chambers of the heart are namely the right atrium, right ventricle, left atrium, and the left ventricle. Venous blood goes to the right atrium via the vena cavas then to the right ventricle via the tricuspid valve; then to the pulmonary circulation via the pulmonary artery where it will be oxygenated. From the pulmonary circulation, the left atrium will receive the oxygenated blood via the pulmonary veins then to the left ventricle via the mitral valve where it will be pumped to the systemic circulation via the aorta.

6 0

3 years ago

Which of these is a process by which water, carbon dioxide and energy are formed?

Zolol [24]

Answer:b

Explanation:

3 0

3 years ago

Match each term with the appropriate definition

miss Akunina [59]

Newton’s second law of motion = statement that force is equal to mass time acceleration

Inertia = the property of matter that resists changes in motion

Force = a push or a pull

Newton’s first law of motion = object’s motion being constant unless acted on by an unbalanced force

Mass = the measure of the amount of a substance

9 0

3 years ago