If one cell is isolated and all the cytosine molecules are labelled with a radioactive tag and then allowed to undergo DNA replication with normal nucleotides, how much radioactive cytosine would be found in the daughter cell DNA and in the next generation’s DNA?

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata

Look at the photo of the leaf. which term best describes this leaf?