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MaRussiya [10]
2 years ago
12

Dolphins lack vocal cords, nevertheless creating aounds: a complicated system of whistles, squeaks, moans, trills, and clicks ar

e produced by
Biology
1 answer:
Alexandra [31]2 years ago
8 0

Dolphins doesn't have vocal cords, on the other hand generating sounds is a complex system of shrieks, Squeals, groans, trills, and clicks are generated by their sphincter muscles inside the blowhole. <span>The sphincter muscle is a circular </span>muscle<span> that usually retains contraction of a natural body passageway or opening, which relaxes as required by normal physiological functioning</span>

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_______ is a brain-imaging technique that shows us precisely which areas of the brain are active at a particular moment in time;
expeople1 [14]
The answer is "PET scan" or "PET-CT". 

PET scan or positron emission tomography uses the technology behind conventional CT scans but performs to quantify the function in specific parts of organs (i.e. brain). The patient will be given a positron emitting substance most commonly fluorodeoxyglucose or FDG via intravenous injection. After which, the patient will go to the PET machine and the PET machine will measure the positron emitted throughout the body. Positron is well correlated to the function of a specific part of an organ.
5 0
3 years ago
Which of these best defines “environmental science”?
blsea [12.9K]

Answer:

A or/and D

Explanation:

Environmental science is the study of how organisms interact with their environment so it can be either a or d. I would say a combination of both.

4 0
3 years ago
Read 2 more answers
If someone were to load a firearm with the wrong-sized ammunition, what would likely be the end result? A, The shot would have a
morpeh [17]

Answer:

The correct answer is option C "There could be damage done to the firearm, and serious injury to the shooter".

Explanation:

There could be serious consequences of using the wrong ammunition when a firearm is being loaded. There could be damage done to the firearm, because the cartridge of the firearm could become lodged and could even explode. However, the most serious situation is the injury that the shooter could receive as result of the explosion. The data stamp of the ammunition must be checked to avoid this situation.

8 0
3 years ago
Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarizat
kifflom [539]

Answer:

Binding of   <u>ACh (acetylcholine)  </u>  to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Explanation:

It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is  <u>ACh (acetylcholine) .</u>

8 0
3 years ago
Which of the following ideas is supported by Darwin's observation of local variation among tortoises in the Galapagos Islands A)
Hoochie [10]

Adaptation is supported by Darwin's observation of local variation among tortoises in the Galapagos Islands.

 

<span>In biology, an </span>adaptation, also called an adaptive trait, is a trait with a current functional role in the life of an organism that is maintained and evolved by means of natural selection. Adaptation<span> refers to both the current state of being </span>adapted<span> and to the dynamic evolutionary process that leads to the </span>adaptation.

 

The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

4 0
3 years ago
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