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The semi-aquatic black swamp snake, Seminatrix pygaea, which lives in an environment where periods of drought are very common, has shown that environmental factors have a negative effect on female snakes whose large size was selected to increase fecundity as these droughts create a unique scenario to test whether survivability or reproductive ...
Hawaiian Vaccinium (blueberries) is a monophyletic group (a clade including all extant species and their common ancestor) comprising three species endemic to the archipelago of Hawaii: Vaccinium reticulatum, Vaccinium dentatum and Vaccinium calycinum, all commonly known in Hawaii as ʻōhelo.
One of the outcomes of plant reproduction is the generation of seeds, spores, and fruits [13] that allow plants to move to new locations or new habitats. [14] Plants do not have nervous systems or any will for their actions. Even so, scientists are able to observe mechanisms that help their offspring thrive as they grow.
"Eating a variety of berries is even better than focusing solely on just one type," says Stoler. Berries can be enjoyed fresh, frozen or dried; all forms are healthy, but raw berries are the most ...
Outcrossing, cross-fertilization or allogamy, in which offspring are formed by the fusion of the gametes of two different plants, is the most common mode of reproduction among higher plants. About 55% of higher plant species reproduce in this way. An additional 7% are partially cross-fertilizing and partially self-fertilizing (autogamy).
The hemipenis is the intromittent organ of Squamata, [4] which is the second largest order of vertebrates with over 9,000 species distributed around the world. They differ from the intromittent organs of most other amniotes such as mammals, archosaurs and turtles that have a single genital tubercle, as squamates have the paired genitalia remaining separate. [5]
Highbush blueberries were first cultivated in New Jersey around the beginning of the 20th century. [9] [8] So-called "wild" (lowbush) blueberries, smaller than cultivated highbush ones, have intense color. V. angustifolium (lowbush blueberry) is found from the Atlantic provinces westward to Quebec and southward to Michigan and West Virginia. In ...
This type of reproduction has been induced artificially in animal species that naturally reproduce through sex, including fish, amphibians, and mice. Normal egg cells form in the process of meiosis and are haploid , with half as many chromosomes as their mother's body cells.