Answer i am begging who ever get it 1st, i will put as

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?