Question

oxytocin is a hormone that controls many responses and functions in the body, including uterine contractions during labor. the movement of the baby down the uterus and into the cervix activates stretch receptors, which stimulate the hypothalamus to release more oxytocin and increase the frequency of contractions. this is an example of __.
a a negative feedback loop.
b acclimatization.
c a positive feedback loop.
d vasoconstriction.
e osmoregulation.
question 2
there are __ types of animal tissue.
a 1
b 2
c 3

Explanation:

For Question 1: A positive feedback loop amplifies a process. Here, baby movement triggers stretch receptors, leading to more oxytocin and stronger contractions—amplifying labor until delivery.
For Question 2: Animal tissues are classified into 4 main types: epithelial, connective, muscle, and nervous. (Note: The visible options don’t include 4, but if assuming a typo or incomplete display, common basics may refer to core categories; however, based on standard knowledge, the correct number is 4. But if limited to visible options, no match—likely a display issue.)

Answer:

Question 1: C. a positive feedback loop.
Question 2: (Note: Standard answer is 4, but if forced to choose from visible options, no correct one. Assuming a possible omission, but based on common questions, the intended answer may be missing. However, if strictly from given options, no valid choice.)

(Note: For Question 2, the visible options do not include the correct answer (4). If this is an error, the standard answer is 4. But based on the provided options, there is no correct choice.)