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.
No, a lot of our knowledge isn’t absolute.
There is a lot that is absolute, like "The Earth is round", but some knowledge is not guaranteed.
For example, people used to think "A fungus plus a algae make a lichen" but it’s actually a fungus, an algae and another type of fungus.
This just shows that we’re always learning new things about our world, and someday we might be proven wrong on something big!
Carb digestion happens first in the mouth by amylase. then stomach, pancreas, small intestine, large intestine
The pair of characteristics that one must use to classify a fish is the presence of jaw and skeleton type. Agnatha fishes are also called jawless fishes and they lack bony skeletons. Cartilaginous fishes are composed of cartilage skeletons. Bony fishes have bony skeleton structures.