You have three samples of different enzymes, but somehow, their labels got lost. Your job is to figure out which enzyme is in each tube. Read about the three enzymes that are in the tubes. Then, move on to the next page to carry out your investigation and get those labels back on the right tubes! Salivary amylase is an enzyme component of saliva. The pH of saliva is between 6.5 and 7.5. The temperature in the mouth is close to internal body temperature, about 37°C.

Pepsin is an enzyme released by cells of the stomach. The stomach contents have a pH of 1.5–3.5, and normal internal body temperature.

Thermophilic bacteria thrive in hot springs, with temperatures at or near the boiling point of water (100°C). The pH of the hot springs these bacteria were taken from varies between 6 and 8.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.