I am pretty sure that the answer is D.) 50%
The correct answers are A) The elevations of contour lines must always be whole numer multiples of the contour interval. and C) Points inside a contour line are a higher elevation than the contour line. Hope this helps
Answer: Hi I have the answer to your problem!
Explanation:
Cardiovascular exercise is any vigorous activity that increases heart rate and respiration and raises oxygen and blood flow throughout the body while using large muscle groups of the body repetitively and rhythmically. So your answer is A.
Because there has been no change in their environment, or/and no predators.