Posted in Biology

A closed system is a physical system that does not allow certain types of transfers (such as transfer of mass) in or out of the system. The specification of what types of transfers are excluded varies in the closed systems of physics, chemistry or engineering. Hope this helped!


Related Questions

Posted in Biology

The respiratory system works with the ______ system to add oxygen to the blood and remove carbon dioxide from the body. what is it ? circulatory,muscular,digestive, or nervous ?

Answer;

-Circulatory system

The respiratory system works with the circulatory system to add oxygen to the blood and remove carbon dioxide from the body.

Explanation;

-The circulatory system is the body’s transport system. It is made up of a group of organs that transport blood throughout the body. The heart pumps the blood and the arteries and veins transport it. Oxygen-rich blood leaves the left side of the heart and enters the biggest artery, called the aorta.

-The circulatory and respiratory systems work together to provide body cells with oxygen which is essential for cellular respiration. This process involves the breaking down of glucose so that energy is released in a form that cells can then use. During cellular respiration, carbon dioxide is produced as a waste product. The carbon dioxide then needs to be removed from the cells or it would cause damage or death to them.

Posted in Biology

What do all living things need? A: energy, water, sunshine, protection B: food, water, air, And a place to live. C: oxygen, and outer covering, parents, and vitamins D: water, parents, a place to live, and air

B. food, water, air, and a place to live is the generic needs of an organism.  Therefore, the correct answer is B. Also, I just took the test and i know for a fact that the answer is B.

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Posted in Biology

Where does the digestive system begin?

Answer:

The answer is Mouth

Explanation:

The digestive system is the set of organs responsible for the feeding process. The organs that make up the gastrointestinal tract are the mouth, the esophagus, the stomach, the liver, the pancreas, the gallbladder, the small intestine, the large intestine and the anus. The digestive system begins in the mouth where the food that enters, is chewed and the digestive juice known as saliva is added.

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Posted in Biology

3. How do living things contribute to the water cycle?


To understand the role of living organisms in the water cycle, you
must first understand the general processes of the water cycle and its
non-living components. The three main steps of the cycle are
condensation, precipitation and evaporation.
Condensation is the change from a gas to a liquid; this occurs in the
atmosphere under conditions of low temperature and pressure, resulting
in the formation of clouds. Precipitation occurs when the water droplets
formed among the clouds become large and heavy and fall to the ground,
most commonly in the form of rain. Other forms of precipitation include
snow, sleet and hail, and depend upon other atmospheric conditions.
The final step of the cycle is evaporation, during which water from
the Earth’s surface evaporates into gas, which rises back into the
atmosphere. The greatest sources of evaporation are large bodies of
water, such as lakes and the ocean. Living organisms, mainly plants and
animals, also contribute to this last step of the cycle through
processes, such as respiration, perspiration and transpiration.

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Posted in Biology

-Why are the necessary to have a healthy ecosystem?

It is necessary to have a healthy ecosystem because all our food and nutrients come from plant and animals. If we don’t have that than we can’t get our energy. There are also pollinators like bees or humming birds that provide plant life. Pollen is moved by these pollinator and make “seeds”. A lot of our food is dependent on this co-evolution. When plants are unhealthy animals would sooner or later get the same treatment. Herbivores start to die. Then, there is no food to provide for the carnivores. The food pyramid or cycle breaks. Humanity starts to fade away. Society crumbles…
‘Inhales’ wow

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