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 For patients not covered by health insurance, the cost of a breast ultrasound varies by provider and region with a national average cost of $360, according to NewChoiceHealth.com. 2  Pueblo Radiology Medical Group Services, in California, charges $350 for a breast ultrasound. For patients covered by health insurance, out-of-pocket costs typically consist of a copay of $10-$50 or more, or coinsurance of 10%-50% or more.