The plant pigments that are involved in photosynthesis are chlorophyll pigments, mostly chlorophyll A. They are found in chloroplasts.
A normal heart rate ranges between 60-100 beats per minute. The higher the heart rate is, the faster the blood is pumping through the heart. When exercising a persons heart will be higher because the brain and the muscles in the body are in need of oxygen so the heart needs to pump faster in order to sustain optimal performance.<span />
ABI means Ankle-Brachial Index. ABI is a test used to diagnose peripheral artery
disease. The ABI compares
blood pressure in the ankle to blood pressure in the arm, shows how well blood is flowing in the
limbs and indicates if there is any or no blockage or rigid arteries. The amount of blockage establishes
the level of peripheral artery disease.
NaCl: natriumchloride. 1 atom of each, so the 2 is too much and I (capital i here) is another element
So for the second excercise the number behind the symbol is the amount of atoms in the compound. So easily 2 atoms of Li, 1 atom of S and 4 of O
The answer is B.- Upright bipedal walking posture.
