Plz help:) ❤️❤️❤️ASAP!

Which of the following would be best when developing a dichotomous key?

A: The swimming ability of different aquatic species

B: The beak shape of different species of birds

C: The Age of different species of reptiles

D: The function of fur mammals

Thanks!!

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.