Answer:
1938
Explanation:
Matthias Schleiden was a German botanist who studied the plant's cell and its structure under the microscope. In 1938 he contributed to the cell theory and stated that every tissue present in the plant is made of or cells and an embryonic plant is produced from one single cell.
In 1939 another scientist Theodor Schwann proposed the same conclusion after studying animal cells and concluded that the basic unit of life is cell and every organism on earth is made up of one or more cells. Therefore Theodor Schwann and Matthias Schleiden have great contribution in cell theory.
Answer:
Option B
Explanation:
In an extensive farming, animals are raised in the most natural way and hence the animals are allowed to roam around the farmlands without any barrier and they are free to express and control their behavior.
Sheep in extensive farming are allowed to graze freely across the farmland at any time of the day.
Hence, option B is correct.
Answer:
Each type of mineral has physical properties that differ from others. These properties include crystal structure, hardness, density, and color. For example, silver is a soft, shiny metal.
Explanation:
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Are only found in the heart
Answer:
This landform may have formed by the magma of the volcano making a new landform from over flowing and erupting so many times is formed a new landform
Explanation: