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kakasveta [241]
2 years ago
11

Which of the following choices supports a circular economy?

Biology
1 answer:
stich3 [128]2 years ago
3 0

Answer:

Option A

Explanation:

In a circular economy, good/services/monetary object is in continuous usage up till its maximum value. The good/services/monetary object keep on moving from one service life (one user) to other service life (other user) as they are regenerated and recovered at the end of each service life.  

In option A, thrift store has been used to its full extent in one service life and then it is donated (start of second service life)

Hence, option A is correct

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Which CNS neuroglial cells remove cell debris, wastes, and pathogens by phagocytosis?
marin [14]

Answer:

Microglial cells

Explanation:

Microglial cells are one of the various types of neuroglial cells in the central nervous system. Microglial cells are the small cells and have thin slender processes. Many spine-shaped outgrowths come out of these processes. Microglial cells serve as phagocytes of the central nervous system. These cells clean the cellular debris that is generated during the normal development of the nervous system. Microglial cells also perform phagocytosis of microbes and damaged nervous tissue.

8 0
3 years ago
Can someone halp me? :P
fiasKO [112]
Its "C"Oxygen because it is used as oxidative phosphorylation
4 0
3 years ago
How is the cell structure related to its function in your body
Nastasia [14]

<span>A cell with a large surface area or with microvilli (which increase surface area) are specialized for absorption. Many cells have different protein markers on their surface to accept certain specific hormones and allow them into the cell, like muscle cells reacting to adrenaline. Muscle cells are long and able to contract, allowing for overall muscle contraction and body movement. </span>

<span>I guess the hormone part I mentioned applies to chemicals; endocrine cells produce hormones that other cells would not. </span>

<span>For organelles, muscle cells don't have many of the organelles that other cells do because of their very specialized functions. </span>

<span>I hope this helps, it would literally take volumes of text books to answer this question completely.</span>
6 0
3 years ago
How do plants use nitrogen?
antoniya [11.8K]

Answer:

Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins. Without proteins, plants wither and die.

5 0
3 years ago
In a tabular form state the sources, functions and deficiency of fat soluble vitamins​
GaryK [48]

Answer and Explanation:

Soluble vitamins are vitamins A, D, E and K.

Vitamin A is easily found in animal foods such as eggs, milk, cheese, meat, among others. It has the function of improving vision, producing antioxidants and improving immunity. its deficiency causes nocturnal tracking and susceptibility to infections.

Vitamin D has the sun as its major source, but it can also be found in fish, seafood, liver, mushrooms and meat. It is important for the growth and strengthening of bones, growth regulation, metabolism, insulin production and strengthening of the cardiovascular, muscular and immune systems. Its deficiency can provoke muscular and bone pains, spasms, intense weakness and calcium deficiency.

Vitamin E has many sources, among which we can mention wheat, vegetable oils, nuts, sunflower seeds, bananas, soybeans, egg yolks, almonds, eggs, spinach, lettuce, among others. Its main function is to act as a powerful antioxidant, slowing premature aging and diseases such as cancer, Parkinson's and cataracts. Its deficiency can cause loss of motor coordination, weakening of the muscles and anemia.

Vitamin K can be found in lettuce, spinach, mustard, broccoli, cucumber, turnip, asparagus, okra, liver, among others. It is important in blood clotting and calcium fixation. Its deficiency can cause defective clotting and bleeding.

6 0
3 years ago
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