Answer my question and I’ll answer yours :3
A conditioned stimulus when paired with a bell. When the bell was rang food was presented. So upon hearing the bell the dog would salivate because he knew simply put food would then follow. This became known as classical conditioning.
The nucleic acid is DNA best conclusion the scientist can make based on the observation
Leaf need water and minerals and root helps to take it from soil and passes it through stem.
stem also holds leaf in place.
hope this helps
The answer is b)produces sugars
