biosynthesis

"The chemist studied the properties of the organic compound. "

"The single-celled organism was studied by the biology students in their science class. "

"The pencil's lead is made of carbon. "

"The chemistry experiment showed that carbon dioxide, a gas we exhale, contains two oxygen atoms for every carbon atom. "

"My sister is very helpful, especially when it comes to organizing things. "

"The garden had a couple of trees, and a cluster of colourful plants around the border."

"My grandmother is living a long and healthy life. "

"I added sugars to my coffee to make it sweeter. "

"the within appeal"

"Sunlight on the skin gives you vitamin D."

"The student's synthesis of different historical sources allowed her to write a strong essay. "

""During the war, the refugees lived in guarded compounds for their safety." "