Which of the following best describes the ploidy level of a fertilized embryo sac? a) all cells are diploid. b) all cells are triploid. c) all cells are polyploid. d) the ploidy level varies among species. e) there are haploid, diploid, and triploid cells.

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

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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.