What does it mean to have a high ph (which numbers), low ph? which is acidic? which is basic? which has more h ions? which has less h ions?

Plants that have reproductive structures called cones are?

Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell

Ascientific idea becomes valid when it is what?