Answer:
a. It can be used for photosynthesis.
Explanation:
Since carbon dioxide is needed in the photosynthesis process, then much of the carbon dioxide which is produced by green plants is not always excreted in form of metabolic waste because it can be easily used in the photosynthesis process.
Embarrassment, envy, anger.
By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
A Paleo diet also known as the Stone Age diet has the same food our hunter-gather ancestors ate such as fruits,meats,seafood and nuts. The diet lessens the body's glycemic load, has a healthy ratio of saturated to unsaturated fatty acids, increases vitamin and nutrient consumption and contains an optimal balance of protein, fat and carbohydrates.
C. ophthalmic medication
The most common form of medications for ear and eye problems are in drops. When the pharmacists dispense medications for the eyes or ears, they must double check the labels to prevent errors, specially because (the type of) antibiotics used for infections of the eyes and ears are similar.
