What is true about scientific knowledge? a. it isn't based on observation b. it changes as new evidence is found c. it is agreed upon by all scientists d. it is rarely proven wrong. is it d?

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids

The genetic code is essentially the same for all organisms. based on this information, one can logically assume which of the following statements to be correct? a. dna was the first genetic material. b. the same codons in different organisms translate into the different amino acids. c. different organisms have different numbers of different types of amino acids. d. a gene from an organism can theoretically be expressed by any other organism. e. all organisms have experienced convergent evolution.