What criteria might be used to establish someone as an expert witness?

education

experience

publications

all of the above

What is the function of nucleic acids

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?