It should be number 1 I believe
Answer: The first civilization that created the concept of zero were the Babylonians but the Babylonians were influenced by Sumerians, the ones who created the first counting system. If anything Americans got a hold of what the counting system was like (the one that contained zero in it) and claimed it as theirs.
Explanation:
Acceleration reaches a maximum
I think so :))
Answer:
b. TSH — posterior pituitary
Explanation:
a). TRH stands for Thyrotropin-releasing hormone. It is secreted by the neurons in the hypothalamus.
b). TSH stands for Thyroid-stimulating hormone. It is secreted by the anterior pituitary which are known as thyrotrophs.
c). Thyroxine is the main hormone which is secreted into the blood by the thyroid glands.
d). Triiodothyronine is a form of thyroxine hormone which is collected by the thyroid glands.
Thus the incorrectly matched secreting organ is (b) TSH — posterior pituitary
The difference between these two can be found in the concequences. Delinquent behavior results in criminal offense for which you can get jail time. On the other hand, unruly means desobedient towards authority and its much fairer than delinquency.