Answer:
A
Explanation:
I would say A. That's because in the answer choice B, it says "parents neglect their children" causing them to have lower self-esteem, which leads to meaning they think that causes teens to be easily influenced by peer pressure. I wouldn't say that would be a direct cause. Also, with answer choice C, it talks about "teens maturing at different rates". Different maturing levels may be a part of why teens are so easily influenced by peer pressure, because of the bigger kids may convince the smaller kids to do whatever they have in mind. I don't see that as being the best answer choice though. With option A, it talks about "rely more on their peers". I think that is very true. It's often to see teens trying to simply fit in or be accepted by their peers so that does a pretty good job at getting others to follow them.
Answer:
As part of the development of the neural tube, by the sixth week of embryonic development, the brain vesicles are already formed.
Explanation:
The encephalic vesicles correspond to a group of dilations that will give rise to the brain and its related structures.
Around the 4th week of embryonic development, the primary encephalic vesicles are formed, and by the 6th week there will also be secondary encephalic vesicles, for a total of five divisions.
The five encephalic vesicles formed in week 6 of embryonic development are the myelencephalon, metencephalon, midbrain, diencephalon and telencephalon.
- <em><u>myelencephalon
</u></em>: It is the structure that is organized to form the spinal bulb, in addition to the motor nuclei of the cranial nerves (pairs) IX to XII.
- <u><em>Metencephalon</em></u>
: It gives rise to the cerebellum and the protrusion.
- <em><u>Midbrain</u></em>
: It forms important structures such as the Edinger-Westphal nucleus, the wing plates, the tegment - together with the nuclei of the cranial nerves III and IV - and the upper cerebellar pedicles.
- <u><em>Diencephalon</em></u>: gives rise to the Thalamus, hypothalamus and pituitary gland.
- <em><u>Telencephalon</u></em>: originates the structure of each cerebral hemisphere, besides the striated body and its respective divisions in caudate and lenticular nuclei.