Discourage the dog from barking during the day and night by always ignoring barks; reward the dog with play and attention when the dog is not barking, and ignore the dog when it is barking. Positive reinforcement will help the dog to learn that barking, during the day or night, does not result in a reward.
The green pigment chlorophyll chlorophyll, green pigment that gives most plants their color and enables them to carry on the process of photosynthesis. Chemically, chlorophyll has several similar forms, each containing a complex ring structure and a long hydrocarbon tail......
Chlorophyll A is the major pigment used in photosynthesis, but there are several types of chlorophyll and numerous other pigments that respond to light, including red, brown, and blue pigments.he green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma (Figure 3, Figure 4). Figure 3: Structure of a chloroplast. Â© 2010 Nature Education All rights reserved.