It is relative dating because no scientist can tell the actually time that the layers of rocks where formed or when the fossil began to degrade
I think it would be the sclereids cells
Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.
Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Increasing melanin production.
Good luck! (:
~ Jasmine
Answer:
1. D, because plants are the main producers
2. B, because the wind direction makes Seattle coo and dry, and the mountain block some of the wind for Spokane
Explanation:
