Botany and Plant Science

Marginal placentation is found in most of the members of the family Leguminosae.he ovary in which the placenta forms a ridge along the ventral suture of the ovary and the ovules develop on two separate rows is known to have marginal placentation.

Each peristome is a ring of triangular "teeth" formed from the remnants of dead cells with thickened cell walls. There are usually 16 such teeth in a single peristome, separate from each other and able to both fold in to cover the stoma as well as fold back to open the stoma.

The carpel (or pistil) is the female reproductive organ of a flower, consisting of the ovary, style, and stigma.

The flower is the reproductive part of the plant where seeds are produced. Stems, leaves, and roots have other functions like support, photosynthesis, and nutrient absorption.

Swiss engineer George de Mestral invented velcro after studying burrs or seeds that stuck on clothes and animal fur. He noticed that the burrs had hooks that caught on anything with loops. The same mechanism is used in making velcro.

A carrot is a modified taproot that stores food, classifying it as a root tuber.

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Sieve tubes are specialized living cells of phloem tissue in flowering plants responsible for transporting organic food materials, mainly sugars, produced by photosynthesis.

Apogamy is the development of a sporophyte from a gametophyte cell without the fusion of gametes (fertilization).

The vascular cambium produces secondary xylem towards the inside. Therefore, the youngest (most recently formed) layer of secondary xylem is located immediately inside the vascular cambium.

A funicle is a botanical term for the stalk that attaches an ovule to the ovary wall. Stalk is the correct definition.