The answer is
D. another natural disturbance
All the steps of GPCR signaling would be prevented in the presence of a beta-blocker drug.
<h3>What is Beta-blocker?</h3>
Beta-blocker may be defined as a kind of medication that chokes the activity of substances, such as adrenaline, on nerve cells and provokes blood vessels to relax and dilate.
Adrenergic receptors choke the attachment of catecholamine that is epinephrine to the G-protein. G-protein activates adenylyl cyclase which in turn activates protein kinase A.
But when the beta-blocker drug is subjected to this pathway, it blocks the attachment of the hormone to their receptors, hence none of the pathway or steps would be carried forward. This is because signaling is not initiated.
Therefore, all the steps of GPCR signaling would be prevented in the presence of a beta-blocker drug.
To learn more about GPCR signaling, refer to the link:
brainly.com/question/9882354
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Hello there!!
The correct answer is Option D. Maintaing homeostasis.
Hope this helped and have a great day!! I wish you the best of luck (:
P.s, Ur a great person!!!
Answer:
by finding the half life of the rock, or radioactive dating of the rock, and the fossil should be as old as the rock
Secondary succession because it was previously abandoned but since its been found theres a new ecosystem growing . ( u could word it a bit differently but it’s definitely secondary succession )
