In biology, the inner lining of tubular structures is called a lumen.
This can refer to numerous tubular structures in the body, such as the lumen of the veins and arteries, the lumen of the intestines or the tubes in the kidneys.
This term can also be used to describe a space defined by membranes of cell organelles such as the lumen of the mitochondria, the Golgi apparatus, and others.
The carbon is among the most abundant element found in the living organisms. The carbon enters the food web through the producers via the process by which they make their food, which is known as photosynthesis. The plants during the process of photosynthesis, take in carbondioxide, water and capture the sunlight to make ATP. The carbon from all these elements enters the producers and then is passed on from one trophic level to another.
Hence, the blanks can be filled with 'producers, and photosynthesis'.
Answer:
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1.Heat and/or pressure 2. Weathering and erosion 3.melting. The heat and pressure will make the sedimentary rock into a metamorphic rock. The melting will make it into magma which will then cool and become igneous rock. The weathering and erosion will make the rock break down into small parts (sediments) which will stay like that for a long time and eventually become a sedimentary rock once again.
Answer:
Amino Acids
Explanation:
The best way to look at it is to split it up.
Proteins are made up of many amino acids.
Amino- amine ( nitrogen) and acid ( coboxylic acid) make up amino acids
