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Klio2033 [76]
3 years ago
6

Why is the heart an organ

Biology
2 answers:
timurjin [86]3 years ago
8 0

Answer:

the heart is an organ

Explanation:

the heart is an organ because it is a nescassary part of a living creature  

Galina-37 [17]3 years ago
4 0
The heart is a muscular organ. An organ is a group of tissues that work together to perform a specific function. The function of the heart is to pump blood throughout your body.
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You create double mutant cells with the permanently active PK1 and an inactivated PK2. You find the cells still respond even whe
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<h2>Kinase cascade </h2>

Explanation:

Normally, PK2 activates PK1

  • PK1 and PK2 normally work sequentially in an intracellular signaling pathway
  • If PK1 is permanently activated, a response is seen independently of whether or not PK2 is present
  • If PK1 activated PK2, no response should be seen if PK1 were activated in the absence of PK2
  • PK2 normally needs to activate PK1 for the cells to respond to the signal
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3 years ago
Blood leaving the heart for the body passes through a large blood vessel called the __________.
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Dr. Hodges notes that David's exhaled carbon dioxide levels are elevated. List all the metabolic pathways that function to synth
Mrrafil [7]

Answer:

Explanation:

The production of ATPs for skeletal muscle contraction  depends on the conditions that the muscles are exposed to.

In presence of abundant oxygen, to the cells  Aerobic respiration-cellular respiration is the most ideal. 32 ATPs and 4 C02 are produced as by-products during the process as by products majorly two C02 from each  of the 2 acetyl Co A that enters the  kerb's cycle.

Likewise direct phosphoryaltion of ADP to ATP gives 32.0 kj/mol of heat liberated but no C02 was produced. This takes place during chemiosmosis. with 28ATPs produced.

In absence of oxygen, anaerobic respiration of skeletal muscles produced ATPs  from  glycolysis, heat and  2C<u>02 as products, but not as by-product</u>.Through alcoholic fermentation pathway.

Therefore ,the correct answer is Aerobic respiration, because it gives out C02 which is a by-product, released out of the body as waste from the lungs,and not use up  in  the body.

3 0
3 years ago
Events that involve matter and energy. Which events can you explain? Which events can’t you explain?
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Eating. Your muscles in your arms and mouth use energy to feed itself. Then your body digest the food which also takes energy. Sleep. When your tired, you don’t have much energy. It is said that you use more energy while your sleeping.

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Define probability. Apply the term to a coin toss.
xz_007 [3.2K]

Answer:

probability is the chance of something happening. the probability of a coin flipping to heads is 50%

Explanation:

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