Chloroplasts also produce oxygen as a by-product of the process. Oxygen is a waste product for plants, and they expel it through structures called stoma, which are most abundant on the undersides of leaves.Chloroplasts only occur in the cells of plants and protists.
1 A 3d/4d ultrasound can cost anywhere from $100 to $300. 2  This price range depends mostly on how many features you wish to be included in your ultrasound experience.3  The more features you choose and the longer the session, the higher the cost will be. 4  On average, plan on spending anywhere from $100 to $1,000. A 3d/4d ultrasound can cost anywhere from $100 to $300. 2  This price range depends mostly on how many features you wish to be included in your ultrasound experience.
The specialized vet establishments and tonier practices will often price it out as an abdominal ultrasoundâfor $250-$500, depending on your luck. The price differential in these cases often has more to do with the price of the equipment utilized. For pregnancy exams providing the most basic information, a minimally functional ultrasound machine is acceptable. These run anywhere from $5,000 to $10,000 for used equipment. At a high-end hospital, this equipment can cost as much as $200,000.