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A "multigravida" or "secundigravida" is a female who has been pregnant more than once. Terms such as "gravida 0", referring to a nulligravida, "gravida 1" for a primigravida, and so on, can also be used. The term "elderly primigravida" has also been used to refer to a female in their first pregnancy who is at least 35 years old. [7]
The main reason plants are being used to produce antibodies is for treatment of illnesses such as immune disorders, cancer, and inflammatory diseases, given the fact that the plantibodies also have no risk of spreading diseases to humans. [5] In the past 2 decades, research has shown that plant-derived antibodies have become easier to produce. [8]
The original concept developed by Hans Molisch in 1937 seemed focused only on interactions between plants, between microorganisms and between microorganisms and plants. [1] Allelochemicals are a subset of secondary metabolites , [ 2 ] which are not directly required for metabolism (i.e. growth, development and reproduction) of the allelopathic ...
There are several key differences between these two mechanisms that may provide reasoning for the evolution of germ plasm inheritance. One difference is that typically inheritance occurs almost immediately during development (around the blastoderm stage) while induction typically does not occur until gastrulation. As germ cells are quiescent ...
Ethnobotany is an interdisciplinary field at the interface of natural and social sciences that studies the relationships between humans and plants. [ 1 ] [ 2 ] It focuses on traditional knowledge of how plants are used, managed, and perceived in human societies .
As long as a non-native plant is not invasive, some can also help pollinators by providing nectar and pollen throughout the season, often filling in the gaps for the native plants.
Another difference is in the stem. Both plants leave some scars on the stem below the rosette where there used to be leaves, but the scars of a cycad are helically arranged and small, while the scars of palms are a circle that wraps around the whole stem. The stems of cycads are also in general rougher and shorter than those of palms.
In many hermaphroditic plant species, the close physical proximity of anthers and stigma makes interference unavoidable, either within a flower or between flowers on an inflorescence. Within-flower interference, which occurs when either the pistil interrupts pollen removal or the anthers prevent pollen deposition, can result in autonomous or ...