Answer:
It's important to not touch the sides or the bottom of the test tube with the thermometer because touching it to the sides or bottom of the test tube fractures the glass and does not allow for correct temperature measurements.
Answer: they can be either dominant or recessive
Explanation: due to the effects of one Gene are usually inherited in a simple mendelian pattern.
the density decreases faster than the temperature decreases
I guess the answer for this would be the DNA but i'm not sure tho, I haven't see this things since a long time.
Skin, tears, mucus, cilia, stomach acid and urine flow