Semipermeable means something can be penetrated by a few things. that being said choices A and B can be eliminated.
Choice D would negate semi as it says all polar molecules, leaving choice C as the best answer
The answer is (1.) entering the torpor
The hummingbirds are the tiniest bird in the world but is
also the biggest eater. They burn food so fast they often eat up to 3 times
their weight. They feed on nectars and insect. When they can’t eat especially
on cold temperatures, these birds go in a sleeping state called torpor. A
fascinating way to conserve energy.
Nucleotides variability and average heterozygosity
Answer:
C. They all have at least one cell
Answer:
Groups of smaller cells can have the same volume as one large cell, but be much more efficient. This is because of a higher SA/V ratio. Small cells have space between to better get nutrients.
Explanation:
hope it helps :)