Where do the carbon-containing molecules in the giant kelp come from

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

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.