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Chaetoceros pseudocurvisetus can reproduce both asexually and sexually. When it divides asexually, the theae vertically separate, and this leads to a progressive reduction in cell size as one daughter cell will always be smaller than its parent cell.
While the biggest species Ch. diaphanus consumes organisms in the size class of about 0.3–3 mm, which mostly contains zooplankton (rotifers, water fleas etc.), Ch. limnaei e.g. selects organisms in the order of 0.03-0.3 mm, which are mainly algae (diatoms and green algae) or very small zooplankton. [1]
Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes . [1]
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Procreative biological processes of humanity Part of a series on Sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW ZO Temperature-dependent Haplodiploidy Heterogametic sex Homogametic sex Sex chromosome X chromosome Y ...
All India Secondary School Examination, commonly known as the class 10th board exam, is a centralized public examination that students in schools affiliated with the Central Board of Secondary Education, primarily in India but also in other Indian-patterned schools affiliated to the CBSE across the world, taken at the end of class 10. The board ...
Reproduction [ edit ] Like most barnacles, C. stellatus is hermaphroditic and capable of self-fertilisation when isolated, but individuals typically take on either a male or female role in order to mate.
Sphaeroplea consists of unbranched filaments of cells, one cell thick. Cells are usually 10–50 μm in diameter, but one variety can reach up to 170 μm in diameter. Cells are cylindrical, several times longer than wide, with a linear series of alternating vacuoles and cytoplasmic zones containing nuclei and chloroplasts.
The geographic distribution of G. underwoodi includes the islands of Guadeloupe, Martinique, Saint Vincent and the Grenadines, Barbados, Antigua, Barbuda, Trinidad, and Tobago in the Lesser Antilles; and Guyana, Suriname, Colombia, and Venezuela in South America.