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.
By doing a little homework and shopping around you can save hundreds of dollars. An ultrasounds performed by a licensed medical professional (physician or registered diagnostic sonographer) costs on average between $100 - $1,000 depending upon what type of ultrasound you get (3-D vs. regular). Not all facilities charge the same amount for the same procedure. Usually stand alone ultrasound facilities, which are not associated with hospitals, cost around $99 to $300. The same ultrasound performed at a hospital may run $200 to $1000. These ultrasound cost usually include the price for black and white pictures, videos, and/or a CD photo disk. Often the cost of an ultrasound is reimbursed by insurance companies if the procedure is considered medically necessary.