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.
1 The typical cost range is $250-$1,100, with a national average cost of $525, according to NewChoiceHealth.com. 2  For example, Concierge Medicine in California charges $275 for a pelvic ultrasound.3  Baptist Memorial Health Care in Tennessee charges $395 for a transvaginal ultrasound. Dartmouth-Hitchcock Medical Center, in New Hampshire, charges $561 for a non-obstetric pelvic ultrasound, and $710 for an obstetric ultrasound, including the doctor fee, after an uninsured discount of 30%.