Yes. All organic matter contains carbon.
Lettuce is classified as a producer because it is capable of photosynthesis. Through photosynthesis, lettuce can produce its own food using sunlight, water, and carbon dioxide, making it a primary producer in the food chain.
All life is carbon based. So if the food is or was once alive, then it is carbon based. Examples would be: Lobster, lettuce, fish, etc.
When it is growing, yes. All plants produce oxygen.
The energy that you get from eating plants like lettuce originally comes from the sun. Plants use sunlight to convert water and carbon dioxide into energy through a process called photosynthesis.
The possessive form for the singular noun lettuce is lettuce's.
romaine lettuce is different because it is much fresher than reg lettuce.
The noun lettuce has varied usage in the plural. Traditionally the usage is "three heads of lettuce", but the alternative "three lettuces" has become very common during the last century. The collective noun is always "I like lettuce" or "this farmer grows lettuce".
Lettuce is a noun.
No, lettuce has leaves.
lettuce with butter on it
Lettuce
Iceberg lettuce is quite delicious.