Biology, 20.10.2019 08:30 1xXJOKERXx3

What is the reproductive system and what is sperm

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The penis delivers sperm through the urethra. The two testicles (or testes) producesperm and the male sex hormone testosterone. Nest to each testicle, the epididymis is a light‑colored tube where sperm is stored. ... In the human reproductive process, two kinds of sex cells, or gametes, are involved.

Though i must say, this is quite inapprrporiate.

Answer from: christopherluckey7

Hello~

The reproductive system is an organ system that most animals and all humans have. It is a system of organs which are for the purpose of sexual reproduction.
Sperm is a reproductive cell which is in only males, and it fertilizes the female egg during sexual reproduction to create an embryo.

Hope this helps~!

Answer from: Quest

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Answer from: Quest

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust. the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles. three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

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