Biology, 01.04.2021 21:50, rosier6244
A paleontologist is trying to determine the ages of several fossils using
different methods. When using carbon dating, the main problem is:
A. It can only be used at night
B. It can't determine the age of really old fossils
C. It works on living organisms only
D. It can only be used to date animal fossils
Answers: 1
Biology, 21.06.2019 18:40, abbypark0804
The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?
Answers: 1
Biology, 22.06.2019 23:50, lolyourenotpoppunk
Apopulation follows a period of decline; overshoot increase; overshoot increase; scarcity scarcity; dieback
Answers: 2
Biology, 23.06.2019 01:00, lineaeriksen
Ahuman female has a special pair of chromosomes that are represented by the letters a) xx. b) xy. c) yy. d) xz.
Answers: 1
A paleontologist is trying to determine the ages of several fossils using
different methods. When u...
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