Answer:
In ecosystems, matter and energy are transferred from one form to another. ... Nutrients and living matter are passed from producers to consumers, then broken down by decomposers.
Explanation:
Observation is the only option that is not a variable in scientific experiment.
<h3>
What are variables in scientific experiment?</h3>
Variables are factors, or condition that can exist in differing amounts during a scientific experiment.
<h3>Types of variables in scientific experiment</h3>
Scientific experiment usually has three kinds of variables:
- independent,
- dependent, and
- controlled.
Thus, Observation is the only option that is not a variable in scientific experiment.
The complete question is below:
Which of the following is not a type of variable in a scientific experiment? A. Independent B. Control C. Dependent D. Observation
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The answer to your problem or question is C pleas like this
D. Ligaments are strong and flexible bands of connective tissue that holds bones together meeting at a point known as joints. The first option - tendons - is also a connective tissue but they attach muscle to the bone.
Characterization and determination of the S/G ratio via Py-GC/MS of agricultural and industrial residues.
<h3>What is the abstract?</h3>
To investigate the potential lignin values, agricultural residues (apple tree pruning, olive tree pruning, and almond shell) and industrial residues (kraft black liquor) were employed as source materials for lignin extraction via various fractionation procedures (kraft, organosolv, acetosolv and acetosolv and formosolv processes). Py-GC/MS, FTIR, and GPC were used to characterise the separated lignins. The fractionation method had a significant impact on the average molecular weight (Mw) assessed by GPC. The severe circumstances of the acetosolv and acetosolv-formosolv procedures favoured repolymerization, resulting in high Mw lignins. Because of the longer retention durations, the EKL had a smaller Mw. Except for almond shell lignin, which has the highest relative abundance of G-type phenols, all lignins have higher relative abundances of S-type phenols.
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