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What is a compound leaf?

A compound leaf is a leaf structure where the leaf blade is divided into multiple leaflets attached to a single leaf stem, called a rachis. Each leaflet may resemble a small, individual leaf but is part of a larger compound leaf structure.


What is the purpose of the tiny openings at the bottom of the leaves?

The tiny openings that are mostly on the bottoms of leaves are called stomata. Stomata are there to allow the flow of carbon dioxide in to the leaf so that the plant can photosynthesize. The stomata are not just little holes in the leaf surface they are highly regulated pores.


Why is the underside of the leaves is a paler green than the top?

In general leaves that are on the inside portion of a plant (or even a leafy vegetable) are paler as they are not exposed to the high light levels that externally facing leaves are. Sometimes they try to compensate for this and may be generally larger than outer facing leaves


How does oxygen exit a leaf?

Oxygen leaves the leaf because it is actually useless to the plant. We breathe in oxygen, because we need it to survive, and we breathe out carbon monoxide, which is contained in our cells but is harmful to us. Plants work together with us - as we breathe out the carbon monoxide, they take it in because they need it, and in return they let out oxygen, which we need.


Why do Lower leaves dry up and fall off?

Lower leaves dry up and fall off on plants due to natural aging and resource allocation. The plant prioritizes newer growth at the top for optimal photosynthesis and energy production, leading to the senescence and shedding of older leaves at the bottom. Lack of water, nutrients, or light reaching the lower leaves can also contribute to their drying and falling off.

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