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kumpel [21]
3 years ago
15

Select the correct answer. If the aorta of the heart is damaged, which function of the heart will be affected first? A. Supplyin

g oxygenated blood to the heart muscles B. Supplying deoxygenated blood to the lungs C. Supplying deoxygenated blood supply to the heart muscles D. Supplying oxygenated blood to the arteries that travel to all major body parts
Biology
2 answers:
faust18 [17]3 years ago
8 0

Answer:

D. Supplying oxygenated blood to the arteries that travel to all major body parts

Explanation:

The aorta is the largest artery in the body. The aorta collects oxygen-rich blood from the heart and is responsible for distributing it to the body through the branching arteries. The aorta travels through the body from the heart to the legs. The aorta is made up of three layers called intima, media, and adventitia and undergoes evolution over the years.

rosijanka [135]3 years ago
5 0
The answer is D. Supplying oxygenated blood to the arteries that travel to all major body parts.
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3 years ago
in experiment 1, which of the following factors was systematically changed so that its effects could be observed? A.light intens
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Explanation:

<u>A.light intensity</u>

<u />

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Carbon dioxide + water + energy= glucose + oxygen

At the compensation point, the rate of CO2 production by respiration matches the rate of CO2 utilization in photosynthesis- there is no net CO2 production . Since photosynthesis is rate limited, the rate of energy intake can be reduced in order to reach the compensation point; lowering the light intensity would slow the rate of photolysis and thus photosynthesis. Similarly, an increase in light intensity

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  • would increase the temperature of the environment- light energy is converted to heat energy which increases temperature.
  • lead to higher levels of humidity- the heightened temperature increases the rate of evaporation of water from tissues, and thus increases the humidity (water vapor content of the surrounding air)

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain. This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

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8 0
3 years ago
A zebra mussel is discovered in a lake in Pennsylvania for the first time. Why would this make an ecologist worried?
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Answer:

D

Explanation:

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3 years ago
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What has allowed animals to adapt over time?
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Natural selection ensures that animals with features that increase their chances of survival are more likely to live and pass those traits on to their progeny.

Animals adapt to their surroundings over a lengthy period of time, which causes those changes. The evolution of adaptations happens across many generations.

<h3>What is an adaptation?</h3>
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Depending on the environment, there are three basic types of adaptations: behavioral, structural, and physiological.

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How do DNA mutations change proteins?
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