just one question i awesae its easy

which statement about sea level is true?
a. it varies throughout the day.
b. it differs from place to place.
c. it is the elevation of the ocean floor.
d. it is halfway between high and low tides.

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red. b) the pollen grains will be pure blue. c) the pollen grains will have red interiors and blue exteriors. d) the pollen grains will have blue interiors and red exteriors.

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).