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stepan [7]
3 years ago
15

Explain why the digestive system, the respiratory system and the circulatory system must work together in order for respiration

in body cells to occur.
Biology
1 answer:
vovikov84 [41]3 years ago
4 0
In order for respiration to occur in cells it needs ATP/ energy that is produced from the digestive system via the breakdown of glucose. The respiratory system inhales oxygen that is needed and the circulatory system enables the transport of oxygen to the other parts of the body.
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A class was performing an experiment to discover the pH values of some common household substances. The results of three groups
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Answer:

b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.

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7 0
3 years ago
Among the tasks in coping with life-threatening illness described by kenneth doka, which phase is characterized by "living with
Triss [41]

Among the tasks in coping with life-threatening illness described by Kenneth Doka, the chronic phase is characterized by "living with the disease".

Kenneth Doka (1995–96) divides the process of dying into three phases, namely the acute, the chronic, and the terminal phases of dying, during which the individual initially is given the diagnosis, then lives with the disease and ultimately surrenders to death.

This phase can be quite long and the supporters may become comfortable in their caregiving role and adjust to the notion of death. This is an important adaptation since a great deal of the care for the terminally ill is given by the family members.

Doka (1998) notes that this phase "is often a period of continued stress, punctuated by points of crisis".

To learn more about Kenneth Doka here

brainly.com/question/14298713

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8 0
2 years ago
A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the followin
hoa [83]
<h2>Collagen genes is the best choice</h2>

Explanation:

Collagen is the most abundant protein in mammals

  • Collagen is found in bones,muscles,tendons and skin
  • It is the one which holds the body together
  • It strengthen and support many tissues in the body
  • Collagen genes encode many types of collagen which have a structural role in the extracellular matrix and has a great tensile strength
  • At least 26 different collagen polypeptide chains are present which are encoded by 26 unique collagen genes
  • Since collagen is the main protein of connective tissue in animals and is considered as the most abundant protein in mammals it can be the best choice to base the phylogeny
  • Rest all options are specific for a particular function in particular animals

7 0
3 years ago
What is the largest source of oil in the oceans
Stels [109]
One of the biggest sources is called nonpoint sources pollution which occurs as a runoff. Hope this helps out
3 0
3 years ago
Why do naturalist suggest that we plant more trees?
seropon [69]
The answer is letter b
4 0
3 years ago
Read 2 more answers
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