Bacteria have been the very first organisms to live on Earth
Polar<span> molecules
water molecules have a weak, partial negative charge at one region of the molecule (the oxygen atom in water) and a partial positive charge elsewhere (the </span>hydrogen<span> atoms in water).The force of attraction is called a </span>hydrogen bond<span>.</span>
Answer:
d
Explanation:
With gases they escape into the atmosphere so u cant move it around withoulosing some. With liquids sometimes they get spilled or little bit gets left at the bottom of the original container
C. At a pH of 8, the enzyme starts to denature and changes shape.
I think is a) dilates the bronchi
