Hello
_________
The answer is A. Nitrous oxide.(laughing gas)
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If you were able to study one of the parasites discussed in the lesson, a group of parasites that would you choose to study is known as Ectoparasites. Thus, the correct option for this question is A.
<h3>What are parasites?</h3>
Parasites may be defined as the types of living organism that significantly lives on or in a host organism and gets their food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.
An ectoparasite is a group of parasites that would you choose to study because these parasites live on the external surface of the hosts. So, they are easy to recognize as compared to endoparasites. Some examples of these parasites may include fleas, lice, Nonogenea, Copepoda, etc.
Therefore, among the options given, an ectoparasite is a group of parasites that would you choose to study. Thus, the correct option for this question is A.
To learn more about Parasites, refer to the link:
brainly.com/question/14293887
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Drugs that increase brain and body activities are called stimulants.
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Explain the role of Calcium(Ca+) in askeletal muscle contraction. Role of calcium { Ca++}: By BONDING to the TROPONIN it causes the TROPOMYOSIN to MOVE from its blocking position on the active sites on the actin filaments SO the CROSS BRIDGES CAN ATTACH.
The answer is B, the NDC is a 10 digit number, in 3 segments. It's a universal product identifier for human drugs in the U.S. I hope this helps
