Blood spatter can indicate: 1. the direction in which the blood was traveling. 2. the angle the blood hit a surface. 3. the origin point of the stain. 4. all of the above.

Could someone me with number one you

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?