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 c 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

Explanation:

1. Quantitative observation question: A quantitative observation involves measurement with numbers. "The starfish is 8 cm long" has a numerical measurement (8 cm), while the others are qualitative (color - yellow, smell - bad, movement - non - numerical description).
2. Germ Theory question: Without specific information about the two additional case studies, a full answer can't be provided. But in general, for example, Louis Pasteur studied fermentation and diseases like anthrax. His experiments included the swan - neck flask experiment to disprove spontaneous generation and show that germs cause fermentation and disease.
3. Humoral Theory question: The Humoral Theory of Medicine was a major medical theory from 450 BC to 1858 AD. It posited that the body had four humors (blood, phlegm, yellow bile, and black bile) and health depended on their balance.

Answer:

1. The starfish is 8 cm long
2. (Without specific case - study info, an example answer could be) Louis Pasteur; Anthrax; Swan - neck flask experiment and other germ - related experiments
3. Major theory of medicine from 450 BC to 1858 AD