Answer:
Should be C! HOPE this helps! science isn't my best subject uwu
Answer:
In everyday language a theory means a hunch or speculation. Not so in science. In science, the word theory refers to a comprehensive explanation of an important feature of nature supported by facts gathered over time. Theories also allow scientists to make predictions about as yet unobserved phenomena".
Explanation:
The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)
1, O because if either shows present it's O.
Laboratory technician,research associate,laboratory manager,research scientist, lead scientist and-principal investigator
