Which structure allows chromosomes to separate and move during mitosis? radiating fibers,

chromatids,

spindle fibers,

nuclear envelope

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative

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 processes would you expect to be key in the production of yogurt ?