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Akimi4 [234]
3 years ago
14

Which class of molecules functions as chemical signals

Biology
1 answer:
WINSTONCH [101]3 years ago
8 0
The hormones are sent as chemical signals
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a pollutant released on one continent is found concentrated in the tissues of organisms on another continent. Is this likely an
Neporo4naja [7]

Answer:

It is most likely an air and water pollutant.

Explanation:

The continents are separated with water and air. Therefore, if a pollutant is released from one continent, it could have transported to the other continent via water and air. Although the effect of air is less due to dispersing of air masses, it still have a chance to transport the pollutant at far distance. This phenomenon can also be related with the <u>transboundary pollution</u> where a pollutant travels to another place. For example, many persistent organic pollutants have beend detected in the bodies of polar bears living in arctic.

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3 years ago
The muscular system helps with ____ and the skeletal system helps with ____.
puteri [66]

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Movement; Structure

Explanation:

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3 years ago
Which of these are examples of inorganic plant nutrients?a.eutrophication and oxygenb. phosphorus and nitrogen c. oxygen and alg
adell [148]

The correct answer is: b. phosphorus and nitrogen  

Plants use organic matter nutrients that produce by their own and thus we classified them as autotrophs (or self-feeders). But, they also require inorganic nutrients such as nitrogen and phosphorus and often one of them is special nutrient needed for growth and because of that called the limiting nutrient.

The fertilizers that people apply to farm fields, gardens and lawns contain phosphorus and nitrogen.

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3 years ago
Read 2 more answers
Question 4 of 10
lisabon 2012 [21]

The atmosphere of Antarctica is left out of the Antarctic Treaty System. thus option B is correct.

<h3>What is the purpose of the Antarctic Treaty system?</h3>

They are: to foster international scientific cooperation in Antarctica; to put aside territorial sovereignty conflicts; to demilitarize Antarctica, establish it as a zone free from nuclear tests and the disposal of radioactive waste, and ensure that it is utilized only for peaceful purposes.

By mandating that Antarctica could only be used for peaceful purposes, the Antarctic Treaty System (ATS) protects Antarctic soil. Even while the ATS is a robust piece of legislation designed to safeguard scientists, visitors, and Antarctica's natural resources, it does not provide any protection for the region's atmosphere. "The Protocol on Environmental Protection to the Antarctic Treaty" is the piece of legislation that governs how Antarctica's atmosphere should be treated.

Learn more about the Antarctic treaty system here:

brainly.com/question/10272695

#SPJ1

8 0
2 years ago
Can someone write a paragraph explaining this drawing of thermal energy. Please dont use google, I'll mark brainiest and give ex
aliina [53]
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
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3 years ago
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