55. Which of the following is a symptom of overtraining? A O Increase in body weight
B. O Decreased number of infections
C. Lowered heart rate during exercise
D. O Decrease in performance
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Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.