The correct answer is B) not asking subjects to agree to participate without first informing them of the nature of the study and possible risks and benefits.
Explanation:
Clinical trials often involve testing treatments such as new vaccines, medicines or therapies. Moreover, these can have different positive or negative effects on participants of the trial. Due to this, one of the basic principles to follow ethical standards for this type of medical research is being completely honest with participants, which includes explaining to them the purpose of the trial, possible risk and also positive benefits.
This is important because in this way participants can make an informed decision on whether to participate or not in the trial which is part of consent. Thus, ethical standards for clinical trials include "not asking subjects to agree to participate without first informing them of the nature of the study and possible risks and benefits".
Answer:
B) Cardiac muscle: voluntary
Explanation:
As we know the skeletal muscle is striated and voluntary and smooth muscle is involuntary. The muscle cardiac has a different classification it is striated but involuntary. The contraction is different from the skeletal muscle this is thanks to the action potential dilivered in the muscular cells of the heart because of the sodium and calcium levels. The sodium is rises very fast but is decrease in the same way and the calcium is in a sustained level that allows the action potential.
Answer:
I ask myself the sae thing. Except why do they require for us to wear masks? Like if your paranoid about this cold then only you wear it. I mean like your wearing a mask to protect YOURSELF, right?
Explanation:
Organ rejection takes place when your body is subjected to a new organ which is a foreign object and attacks it.
<h3>What do you mean by Graft rejection?</h3>
Graft rejection may be defined as a process in which a transplant recipient's immune system attacks the transplanted organ or tissue.
Xenograft shows high rejection. This is because it involves the transplantation between genetically distinct members of different species.
The process of organ rejection is initiated by T cells which perform the role of the recognization of a transplanted organ.
If these T cells are activated, it may lead to organ rejection by undergoing clonal expansion, and differentiation of the effector cells, which together lead to the obliteration of the tissues.
Therefore, organ rejection takes place when your body is subjected to a new organ which is a foreign object, and attacks it.
To learn more about Organ rejection, refer to the link:
brainly.com/question/1313114
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