The correct answer is D. Just noticeable difference.
Explanation
In psychophysics, a barely noticeable difference, usually abbreviated with lowercase letters JND, is the smallest detectable difference between an initial and a secondary level of a particular sensory stimulus. Also known as limen difference, differential threshold, or less noticeable difference. According to the above, the correct answer is D. Just noticeable difference.
I believe the answer is 1,014
Answer:
Limited resources for the population
The Correct Answer is A
Reasoning - Since the ani. had went into a different ecosystem and habitat amd mateded it had offspring with the originally some genetic along with some little different variations. In turn this is call Founders Effect