Answer:
Because butterflies with longer tongues were better equipped to eat nectar from inside flowers, and so it was easier for them to eat and grow. So they were better quipped to survive than those with shorter tongues.
For proteins, the monomers are amino acids. I hope this helps! :)
The choices can be found elsewhere and as follows:
<span>body mass index
basal metabolic rate
resting heart rate
resting caloric count
</span>
I believe the correct answer is the second option. The term that describes the <span>number of calories the body uses at rest would be basal metabolic rate. Hope this answers the question. Have a nice day.</span>