Hey there!
The purpose of guard cells is to control the opening and closing of the Stomata, keeping it the correct width, or size.
Therefore, your correct answer would be Option 3, control the size of the Stomata.
Hope this helps!
Law of thermodynamics states that matter and energy cannot be destroyed or created, but can be converted from one form to another. A balanced equation ensures that this basic principle is observed.
On the left-hand side of the equation (the reactants), there are 2 Nitrogen moles and 8 Hydrogen moles. After the reaction, the molecules are rearranged. Nonetheless, the moles of Nitrogen and Hydrogen in the products remain the same.
Answer:
The field of view is widest on the lowest power objective. When you switch to a higher power, the field of view is closes in. You will see more of an object on low power.

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Microscope Notes
Answer:
Splitting.
Explanation:
The endosymbiont theory explains the evolution of the organelles of eukaryotes by the ingestion of the materials of prokaryotes. Various evidence are available for the endosymbiont theory origin.
The mitochondria and chloroplast contains the similar RNA sequence and their genetic material is limited. The chloroplast and mitochondria divides by the process of splitting.
Thus, the answer is splitting.
