In what area did the National Association for the Advancement of Colored People (NAACP) have its first successes? pressuring Congress to pass voting rights laws winning court battles against public school segregation bringing Northern whites into the Civil Rights movement winning court battles against discrimination in employment
Answer: possibly A
Explanation: B an C are not it because they are more like mutations. D humans don’t always become immune.
The t<u>unica media</u> is composed of an endothelial layer that is continuous with the endocardium of the heart.
<h3>What is tunica media?</h3>
Collagen, elastin, and smooth muscle cells make up tunica media. It is located halfway between the tunica externa and the tunica intima. The transverse arrangement of its strands and color make the middle coat (tunica medium) distinct from the inner (tunica intima). It not only supports the vessel but also alters the vessel's width to control blood pressure and flow.
Elastic fibers make up the majority of the tunica media in bigger vessels. The number of elastic fibers reduces as arteries get smaller, whereas the number of smooth muscle fibers grows. The strongest of the three layers is the tunica adventitia, which is the top layer. Elastic and collagenous fibers make up its structure.
Learn more about tunica media here:
brainly.com/question/15395381
#SPJ4
For the answer to the question above, this plant is more likely a kind of "liverwort plant"
they are flowerless and they are spore-producing plants and non-vascular. There are estimated of 9,000 species of this kind of plant.
I hope this helped
Guanine and adenine, structure-wise, are purines.
