d. scientific theory
Explanation:
The statement that all living things like planktons are made up of cells is a true scientific theory.
All living organisms are made up of cells and all cells are derived from pre-existing cells is the first and most fundamental postulate of the cell theory.
- the concept that living things are made up of cell is from the cell theory.
- the cell is the fundamental unit of life.
- the cell theory provides an explanation into cells as the unit of life
learn more:
Cell theory brainly.com/question/3256177
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The description of soil according to Jonathan is as follows:
- Mostly large grains, with a gritty texture, 45% sand, 5% clay, and 45% silt ---- Silty loam soil.
- Mostly large grains, with a sticky texture, 55% sand, 40% clay, and 5% silt ----- Sandy clay soil.
- Mostly small grains, with a sticky texture, 30% sand, 50% clay, and 20% silt ----- Clay soil.
- Mostly small grains, with a smooth texture, 30% sand, 5% clay, and 65% silt ----- Silty loam soil.
<h3>What is Soil Texture?</h3>
Soil texture may be defined as a classification of soil on the basis of its physical appearance, texture, and properties.
In this question, the texture and composition of other soil are illustrated briefly with respect to each common soil type.
Therefore, it is well described above.
To learn more about Soil texture, refer to the link:
brainly.com/question/946875
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Plato answer:
Stimulation of a neuron causes a change in the charge inside the cell from negative to positive. This change is caused by ions, which are atoms with an electrical charge, moving across the cell. This change within the cell is consistent with the definition of an electric charge.