Answer:
sensors, control center, communication system, target
Explanation:
Answer:
notochord, a dorsal hollow nerve cord and pharyngeal slits.
Answer:
the central nervous system, cardiovascular, respiratory, and musculoskeletal systems
Explanation:
The choices can be found elsewhere and as follows:
<span>atural and synthetic
metabolites and nonmetabolites
proteins, carbohydrates, lipids, and nucleic acids
organic compounds and inorganic compounds
I think the correct answer from the choices is the third option. The c</span>lassifications of matter used In the 1800 are proteins, carbohydrates, lipids, and nucleic acids. Hope this helps.