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.
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 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.
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.
[Intro:]
Ain't nothing new nigga, just something new
[Verse 1:]
I never trust faith with my trust funds
I keep it in a safe place nigga, lump sum
Camera surveillance a bunch of fucking stun guns
I'm a snare to the drum, burum-bum-bum
Her virgin homicide I show her how we drum-a-drum
She doesn't come for me, the bitch only say she come for fun
What's up hunny bun, wanna feel your tummy rum?
Rumbling in a ring with pills of fucking numb
Your system is my fucking dick-dom
Feel the friction of my children with down syndrome
I'm rehearsin' for my funeral, triple six are the numerals
MellowHype musical talking to wolves like Dolittle
Think with a migraine like a fucking eye strain
Break bottles of champagne on a fucking biplane
If it doesn't add up then ask the students my name
I'm fucking Einstein, I'm sane
[Hook:]
Knock, knock! Delivery, I'm the rhetorician
Body decomposition, rippin' through your rhythms
I suggest you stop and listen to this non-prescription
Fuck your contradiction, here's my composition
[Verse 2:]
Leprechaun, hexagon, transform Decepticon
Rasputin, I'm half mutant, fucked financially, cash students
I'm too pursuant to over-do shit, super fluent
My flow is overheated it needs coolin' shit
Fuck being poor and return to the school and shoot it up
While I shoot it like a porno bitch with cool whip
I dive scuba, barracuda, shark water in Cuba
Chicken head of the sea, but I don't fuckin' eat tuna
I sneak her in my room like Puma
My bedroom rules Jerusalem and I'm Judah, suck on my messiah
Or die and cry a fire, it's true, so is the curse of lying
So is Mrs. Doubtfire, fat bitches and dope beats
Are what my niggas acquire, if you're broke, get the cash
Bitch I'm dope, do the math, triple six slipping through a golden flask
All hail Mr. Mustard Gas, I ain't gay but I'm a fuckin' ass
[Hook:]
Knock, knock! Delivery, I'm the rhetorician
Body decomposition, rippin' through your rhythms
I suggest you stop and listen to this non-prescription