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3 years ago

Horses evolved teeth with a cement covering and evolved from multiple toes to a single hoof because:

2 answers:

7 0

The answer is C because horses used to have many smaller toes, perfect for running on softer forest ground. As the environment changed and they ran on grasslands, they evolved a single “toe” (their hoof) to run on providing better resistance to hard ground.

Hope this helps :)

wariber [46]3 years ago

5 0

I believe the answer is C.

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Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Kitty [74]

Answer:

The vessels draining Myocardium of the heart join to form Coronary Sinus that ultimately opens into THE RIGHT ATRIUM.

Explanation:

CORONARY CIRCULATION:

The heart muscles are called as Myocardium. Circulation of myocardium is known as Coronary Circulation. The heart needs to work continuously and requires an uninterrupted supply of blood.

Coronary Arteries supply oxygen rich blood to the myocardium and Coronary Veins remove deoxygenated blood from heart muscles and join to form Coronary Sinus that ultimately drains into the Right Atrium of heart. Some veins from the myocardium also drains directly into the right atrium.

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3 years ago

Give several advantages to passive solar heating uses and active solar system applications

Rina8888 [55]

Answer:A material designed to produce passive solar energy can achieve energy savings of 70%. In addition to this great advantage, we show you what are the main benefits that passive solar energy can bring us:

Reduced maintenance cost. Since it has no external equipment to harness the energy, the maintenance required will be practically nil.

It is 100% renewable energy. It does not emit polluting gases and helps to maintain the environment, in addition to being an inexhaustible source which is the sun and we can always have it.

Energy and economic savings.

Reduction in the cost of electricity and gas bills.

Compatible with solar panel installations. In fact, it is currently considered as a complementary technology.

APPLICATIONS :Active solar energy is mainly used to obtain sanitary hot water, heating systems and to transform solar radiation into electrical energy.

Active solar technology is also used to produce air currents for ventilation or cooling and to store heat for later use. In any of these processes, the use of pumps and fans is required.

Other uses of active solar energy are:

Water purification.

Drying.

Evaporation.

Distillation.

Solar batteries.

Solar chargers.

Energy for street lighting, traffic signals and roads.

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3 years ago

Which symptom will have a great impact on the extracellular fluid for water conservation?

hoa [83]

Answer: Burns

Explanation: Dehydration of as little as 2% of total body water can result in a significant impairment. For example: Hormonal changes that affect fluid and electrolyte homeostasis.

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3 years ago

How much of the oxygen in our blood is generally transported in combination with hemoglobin in red blood cells?

I am Lyosha [343]

The exact number is 98.5%

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3 years ago

The scientist who suggested that energy can be created under certain conditions was a. Newton. b. Einstein. c. Wright. d. Pascal

vivado [14]

Hey there!

The scientist that suggested that energy can be created under certain conditions was Einstein

Hope this helps!

4 0

3 years ago

Read 2 more answers