Answer:
The word 'Group' in science refers to a column in the periodic table of the chemical elements.
Explanation:
"In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts." -high school textbook
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While your heart rate increases, your blood pressure doesn't. When you have an increased heart rate your heart is doing more beats a minute dilating your vessels to allow more blood flow. Blood pressure is measured in two ways, systolic pressure and dystolic pressure. (120/80)
<span>keeping their stomata open just enough to allow photosynthesis to take place but not so much that they lose an excessive amount of water. Leaves take in carbon dioxide and give off oxygen during photosynthesis.</span>
The answer is B It must be testable.
