D) laboratory experiments because every experiment needs a control and a variable.
Answer:
The genetic code consists of <u>three</u> letter “words.”
Explanation:
I'm assuming this was what you're looking for. These "words" are known as codons: for example, AUG stands for the methionine amino acid, so that triplet of nucleotide bases leads to the Met amino acid being added to the final protein.
Palisade cells are a specific type of plant cell. They have chloroplasts and do most of the photosynthesis in the leaf. Because palisade cells are plant cells, they also have the differences always found between plant and animal cells. They have a cell wall; animal cells have only a cell membrane.
