Rosalind franklin's data indicated that the dna molecule had to be long and thin with a width(diameter) that is 2 nanometers along its length. double-ringed nucleotides are wider than single-ringed ones, so the uniform width of the dna molecule results watson and crick declared).

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger

answer: all : )

explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.