They float around and they give signals
The discovery of the cell was possible do to the invention of the Microscope.
I would say C because A is a positive, B is a positive, and D is a positive, The only "disadvantage" is in C
Answer: allele, gene, DNA, chromosome, nucleus
Explanation: An allele is a variant of a gene or a different form of a gene. A gene is a segment of a DNA that codes for an RNA or a protein. A DNA is a genetic material that contains all the genetic information of an organism. A DNA is packaged and condensed into a threadlike material known as chromosome and chromosomes are found in the nucleus of a cell.
Answer:
Frog forelimbs are typically short as the hind limbs are the principal limb pair generating propulsion.