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klasskru [66]
2 years ago
6

Which of the following is a necessary reactant for cellular respiration to occur?

Biology
1 answer:
laiz [17]2 years ago
8 0
The answer is Oxygen
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At the systemic tissues, erythrocytes typically unload oxygen and load carbon dioxide. a. true b. false
bixtya [17]

Answer:

Answer is true.

Explanation:

A systemic circulation involves the supply of functional blood which is known as the oxygenated blood to cells or body tissues, and subsequently  picks up carbon [iv] oxide and other waste products.

The erythrocytes are the red blood cells which when mixed with oxygen become bright red in color.

Note that, systemic tissues are where the oxygen from the heart are being released and the waste products are absorbed.

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3 years ago
What are the two processes used by producers to obtain energy
MariettaO [177]
Answer;
The two processes used by producers to obtain energy are photosynthesis and chemosynthesis.

Explanation; 
Producers are those organisms that can make their own energy in an ecosystem using biochemical processes. These biochemical processes are photosynthesis and chemosynthesis.
Photosynthesis involves use of energy from the sunlight together with water and oxygen to make simple sugars. The process converts solar energy to chemical energy (simple sugars). 
Chemosynthesis involves use of chemicals as the energy source, rather than sunlight , to make simple sugars such as glucose. 
Glucose from both processes is then used for respiration to generate energy or stored in form of starch. 
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CaHeK987 [17]
The correct option is B.
Rockfeller asked Diego to make an artistic work for the lobby of the RCA building. The final work which Diego presented contained the portrait of Vladimir Lehin although this was not part of the contract arrangement. Vladimir Lenin was an hated politician, who is synonymous with communism and Rockefeller did not share the political ideas of this man at all, because of this Rockefeller asked Diego to remove the artwork; the artist refused and the artwork was eventually destroyed.<span />
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Except during __________, cell division in humans results in daughter cells that have the same number of chromosomes and are gen
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Cytokinesis, it's the division of a cell at the end of mitosis and the cell divides into two daughter cells.
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What's homeostasis ?​
juin [17]

Homeostasis:

<em>The tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes</em>

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