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Colt1911 [192]
3 years ago
8

What do all complex multicellular organisms have in common? a means by which to hold cells together regulatory gene networks tha

t control cell and tissue differentiation patterns simple patterns of cell and tissue differentiation highly developed cell-cell communication
Biology
1 answer:
VikaD [51]3 years ago
8 0

Answer: the correct option is : highly developed cell- cell communication.

Explanation: In complex multicellular organisms, cell - cell communication also known as cell signalling is part of any communication process that leads basic activities of cells and coordinates multiple cell functions.

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How is radioactive decay used to date sedimentary rocks?
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<span>Hello to answer your question fully.

<span>B.The amounts of carbon-14 and nitrogen in sedimentary rocks are measured.</span>


Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks.

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John, a 19 year old boy, wanted to figure out why he wasn't sleeping well at night. He normally and heads to bed by 11 pm and wa
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Answer:

The Pepsi he drinks at 10 pm

Explanation:

Pepsi is a caffeinated drink that has caffeine in it. Caffeine is a stimulant which means it keeps the body awake and alert. Caffeine works by mimicking adenosine. Adenosine is produced by neuron cells and when it binds to its own receptors (autocrine signaling) it triggers the neurons cells to continue firing. As the adenosine levels fall as the day progresses, the brain is signaled that it is time rest. Adenosine levels are at the lowest when its almost bedtime. However, when Jon takes Pepsi, the caffeine in it bind to the adenosine receptors and make the brain neurons to keep ‘firing’.

6 0
3 years ago
As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called
fomenos

Answer:

As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called Keratinization.

Explanation:

Keratinization is a process which changes the stratum corneum of the skin to a hard cover which provides protection.

The process of keratinization involves polymerization of keratin polypeptides. The keratin polypeptides gets polymerized into intermediate filaments of keratin. Each of the intermediate filament of keratin constitute around 30,000 polypeptides of keratin.  

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