What is the biotic limiting factor

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12