1- Red color has the longest wavelength. Red light belongs to the visible spectrum of light and the wavelength of visible spectrum ranges from 700nm to 400nm, from red to violet respectively.
2- Gamma rays, x-rays, visible light and radio waves are all types of electromagnetic radiations. Electromagnetic radiations contain visible light, radio waves, gamma rays and x-rays. These radiations has varied electric and magnetic fields.
3- The fact that light can exert a pressure on matter suggests that it is made up of photons.
I believe the correct answer from the choices listed above is the last option. Life on Earth originated from primitive bacteria. <span> It is generally agreed that all </span>life<span> today evolved by common descent from a single primitive lifeform and the lifeform from the choices is bacteria. Hope this helps.</span>
Plasma membrane is described as Semi permeable because it selects what molecules enter/exit the cell which is important in maintaining homeostasis.
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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Answer: 1,260 cubic mm
(1/6)(7,560) = 7,560/6 = 1,260
multiplying by 1/6 is the same as dividing by 6 (6 and 1/6 are reciprocals)
