Question

which of these is a quantitative observation? *
the starfish is 8 cm long
the starfish is yellow
the starfish smells bad
the starfish is moving
from the germ theory investigation, choose one of the two additional case studies. state who the scientist is, the disease they studied and their experiment.
your answer
what was the \humoral theory of medicine?\ *
major theory of medicine from 450 bc to 1858 ad
the same as germ theory
observing medicine

Explanation:

First Sub - question

Quantitative observations involve measurements or numbers. "The starfish is 8 cm long" has a numerical measurement. The other options are qualitative (color, smell, movement).

One well - known scientist in germ theory is Louis Pasteur. He studied rabies. His experiment involved taking saliva from rabid animals and injecting it into healthy animals to show that a germ was the cause of the disease. He also developed a vaccine for rabies by weakening the rabies virus.

The Humoral Theory of Medicine was a major theory from 450 BC to 1858 AD. It proposed that the body had four humors (blood, phlegm, yellow bile, and black bile) and that an imbalance of these humors caused disease.

Answer:

The starfish is 8 cm long

Second Sub - question