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mariarad [96]
3 years ago
8

What is coronary heart disease?

Biology
1 answer:
grin007 [14]3 years ago
6 0
Coronary heart disease (CHD) is a disease in which a waxy substance called plaque builds up inside the coronary arteries. When plaque builds up in the arteries, the condition is called atherosclerosis.
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Carbon dioxide is carried from the tissues to the lungs by a variety of mechanisms. Which of the following lists these mechanism
Yakvenalex [24]

Answer:

bicarbonate-carbaminohemoglobin-dissolved in plasma

Explanation:

Transport of CO2 in the blood occurs in three main forms. Most of the CO2 is carried in the blood as bicarbonate. It accounts for transport of about 70% CO2. In RBCs, CO2 reacts with water in the presence of the enzyme carbonic anhydrase to form carbonic acid, which dissociates into H+ and HCO3-. Bicarbonate formation also occurs in blood plasma.

About 23% of CO2 is carried in the form of carbamino-compounds. Binding of CO2 to hemoglobin forms carbaminohemoglobin. The smallest percentage of CO2 (about 7%) is dissolved in blood plasma and is diffused into the alveolar air as it reaches the lungs.

6 0
3 years ago
How would expect the biomass to change after ten days if seeds and plants were provided the following conditions?
atroni [7]

Answer:

La biomasa (energía) se refiere a la biomasa «útil» en términos energéticos formales: las plantas transforman la energía radiante del Sol en energía química a través de la fotosíntesis, y parte de esa energía química queda almacenada en forma de materia orgánica; la energía química de la biomasa puede recuperarse quemándola directamente o transformándola en combustible.

Explanation:

8 0
3 years ago
Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as a. Cedar b. Elm c. Pine d. All of the a
vodka [1.7K]
D all of the above would be the correct answer
8 0
3 years ago
Give one example of how humans can affect the biosphere. How might that impact the other spheres in the Earth system?
iren [92.7K]

Answer:  Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.

Explanation:  Hope this helps and good luck :)

5 0
2 years ago
In C3 plants the conservation of water promotes_______.a. photorespiration. b. a shift to C4.c. photosynthesis.d. the opening of
ankoles [38]

Answer:

A) photorespiration.

Explanation:

Photorespiration is the harmful metabolic process which takes place when the concentration of oxygen in the leaf increases compared to carbon dioxide.

The RUBISCO enzyme which usually binds the carbon dioxide now binds the oxygen and form the phosphoglycolate and 3 phosphoglycerate. The phosphoglycolate is lost through the Calvin cycle as Carbon dioxide molecule. This loss proves harmful to the plants.

The photorespiration occurs when the plant faces high temperature therefore n order to prevent water loss the stomata gets closed. This result in the binding of the oxygen to the RUBISCO and thus photorespiration begins.

Thus, Option-A is correct.

6 0
2 years ago
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