The bottom number of your target heart rate range tells you a. the minimum heart rate for cardiovascular exercise b. the maximum heart rate for cardiovascular exercise c. the mid range rate for cardiovascular exercise d. your heart rate at rest

What did the first language sound like

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Aboy with an extra x chromosome probably has which of the following syndromes?