- published: 21 Jun 2016
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In biology, sexual reproduction is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into a male or female variety, each known as a sex. Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.
An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.
Seventh may refer to:
A circle is a simple shape of Euclidean geometry consisting of those points in a plane that are equidistant from a given point, the centre. The distance between any of the points and the centre is called the radius.
Circles are simple closed curves which divide the plane into two regions: an interior and an exterior. In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure, or to the whole figure including its interior; in strict technical usage, the circle is the former and the latter is called a disk.
A circle can be defined as the curve traced out by a point that moves so that its distance from a given point is constant.
A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0. Circles are conic sections attained when a right circular cone is intersected by a plane perpendicular to the axis of the cone.
A circle's diameter is the length of a line segment whose endpoints lie on the circle and which passes through the centre. This is the largest distance between any two points on the circle. The diameter of a circle is twice the radius, or distance from the centre to the circle's boundary. The terms "diameter" and "radius" also refer to the line segments which fit these descriptions. The circumference is the distance around the outside of a circle.
A place of power's rising
A place so deep within
In that stormy night when I came in
The fence that penned me in
In times when my heart tried to flee
From the serpent camouflage's melody
[pre-chorus]
The corridors I'm walking the walls point waits at me
The pictures in their ancient frames
Have eyes but will not see
[chorus]
One silent scream
Came straight into my dream am I still here in these
Unwritten pages of stories
The spoken word
Is often quite unheard
In this old gallery
Of splendid unbroken memory
I can hear
The palace in your heart will grow
Uncovered the rivers will flow
Plastic balls of forlorn memories
Rolling on and on
For one more wish you're yearning and they're gone
The valleys of your soul
They still can let the light shine in
The symmetry of your heart grows within
[pre-chorus]
The mourning hours are history
In my enchanted land
The belfry dies away down here
The road shall have no end
[chorus]
For years I've tried to feel
For years I've turned the wheel
For all that's said and done it is so clear
The crystal moments shine above eternal nights of fearin' here