Look it up on google , i had this same question and google helped me. i can’t remember the answer or i’d tell u
DNA (or deoxyribonucleic acid) is the molecule that carries the genetic information in all cellular forms of life and some viruses. Source-
DNA, Genes and Chromosomes — University of Leicester
www2.le.ac.uk/projects/vgec/highereducation/topics/dna-genes-chromosomes
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
When you get a bruise, capillaries the smallest blood vessels get busted and release blood which will be trapped beneath the skin as a result of the trauma or impact which may be a blow or a cut
The answer is Fossilized Amber.
