Which term best indicates the structures represented by the circle labeled x?
(1) organelles (3) organ systems
(2) chromosomes (4) tissues

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

What does this experimental investigation lack

For an animal living a diplontic cycle, meiosis is limited to: producing gametes producing growth fertilization development of the zygote