Male

A male (♂) organism is the physiological sex that produces sperm. Each spermatozoon can fuse with a larger female gamete, or ovum, in the process of fertilization. A male cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually. Most male mammals, including male humans, have a Y chromosome, which codes for the production of larger amounts of testosterone to develop male reproductive organs.

Not all species share a common sex-determination system. In most animals, including humans, sex is determined genetically, but in some species it can be determined due to social, environmental or other factors. For example, Cymothoa exigua changes sex depending on the number of females present in the vicinity.

Overview

The existence of two sexes seems to have been selected independently across different evolutionary lineages (see convergent evolution). The repeated pattern is sexual reproduction in isogamous species with two or more mating types with gametes of identical form and behavior (but different at the molecular level) to anisogamous species with gametes of male and female types to oogamous species in which the female gamete is very much larger than the male and has no ability to move. There is a good argument that this pattern was driven by the physical constraints on the mechanisms by which two gametes get together as required for sexual reproduction.

Maleč

Maleč is a village and municipality (obec) in Havlíčkův Brod District in the Vysočina Region of the Czech Republic.

The municipality covers an area of 12.09 square kilometres (4.67 sq mi), and has a population of 721 (as at 28 August 2006).

Maleč lies approximately 20 kilometres (12 mi) north of Havlíčkův Brod, 42 km (26 mi) north of Jihlava, and 97 km (60 mi) east of Prague.

References

Plant reproductive morphology

Plant reproductive morphology is concerned with the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction.

Among all living organisms, flowers, which are the reproductive structures of angiosperms, are the most varied physically and show a correspondingly great diversity in methods of reproduction. Plants that are not flowering plants (green algae, mosses, liverworts, hornworts, ferns and gymnosperms such as conifers) also have complex interplays between morphological adaptation and environmental factors in their sexual reproduction. The breeding system, or how the sperm from one plant fertilizes the ovum of another, depends on the reproductive morphology, and is the single most important determinant of the genetic structure of nonclonal plant populations. Christian Konrad Sprengel (1793) studied the reproduction of flowering plants and for the first time it was understood that the pollination process involved both biotic and abiotic interactions. Charles Darwin's theories of natural selection utilized this work to build his theory of evolution, which includes analysis of the coevolution of flowers and their insect pollinators.

Fetus

In human development, a fetus (/ˈfiːtəs/; plural "fetuses"), also spelled foetus, is a prenatal human between its embryonic state and its birth. The fetal stage of development tends to be taken as beginning at the gestational age of eleven weeks, i.e. nine weeks after fertilization. In biological terms, however, prenatal development is a continuum, with no clear defining feature distinguishing an embryo from a fetus. The use of the term "fetus" generally implies that an embryo has developed to the point of being recognizable as a human; this is the point usually taken to be the ninth week after fertilization. A fetus is also characterized by the presence of all the major body organs, though they will not yet be fully developed and functional and some not yet situated in their final anatomical location.

Etymology

The word fetus (plural fetuses) is from the Latin fētus (“offspring”, “bringing forth”, “hatching of young”). The British, Irish, and Commonwealth spelling is foetus, which has been in use since at least 1594. It arose as a hypercorrection based on an incorrect etymology (i.e. due to insufficient knowledge of Latin) that may have originated with an error by Isidore of Seville in AD 620. This spelling is the most common in most Commonwealth nations, except in the medical literature, where fetus is used. The etymologically accurate original spelling fetus is used in Canada and the United States. In addition, fetus is now the standard English spelling throughout the world in medical journals. The spelling faetus was used historically.

Foetus (band)

Foetus is the primary musical outlet of J. G. Thirlwell. Until 1995 the band underwent various name changes, all including the word foetus. Monikers adopted at different times include Foetus Under Glass, You've Got Foetus on Your Breath and Scraping Foetus Off The Wheel. After 1995 the name permanently became Foetus, though the related project The Foetus Symphony Orchestra was founded in 1997 and continues.

Thirlwell acts as the sole instrumentalist, vocalist, songwriter and producer for all Foetus works and as such is the only member of the band. Other artists may occasionally collaborate with Thirlwell on Foetus works but are not considered members of Foetus. Thirlwell is solely responsible for the musical output of the band.

J. G. Thirlwell has many side-projects, in which he frequently goes by the name Clint Ruin. One such grouping is Wiseblood with former Swans member Roli Mosimann. The material tends toward the realm of the darkest and most sexual Foetus songs, with Mosimann's Swans lineage showing in the slow, crushing pacing of many tracks. Thematically, Wiseblood's lyrics center around the misanthropic exertion of power, typically via murder, sex or assault. Wiseblood existed on-and-off from the mid-1980s through early 1990s.

Foetus (film)

Foetus (Hungarian: A magzat) is a 1994 Hungarian drama film directed by Márta Mészáros. It was entered into the 44th Berlin International Film Festival.

Cast

References

External links