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Ket [755]
3 years ago
15

Al respirar el aire con el oxígeno, este entra por dos orificios llamados ____________________ recubiertos de vellosidades con c

élulas que secretan moco. b) Después el aire pasa a la ______________. (tubo que comunica además con la boca). c) Enseguida el aire atraviesa por un conducto llamado _____________ el cual es exclusivamente respiratorio. La entrada del aire está regulada por una válvula llamada ____________. d) De aquí pasa a un conducto llamado____________________ que es un tubo de 10 centímetros de largo el cual se ramifica en dos tubos llamados bronquios. e) El aire continúa por los ______________ que penetran en la parte posterior de los ______________que son los principales ___________respiratorios. f) Dentro de cada pulmón los bronquios se dividen en dos tubos más pequeños llamados _______________ los cuales se ramifican en estructuras llamadas _________________. g) En ellos el aire entra en contacto con la sangre, se produce un intercambio de gases: el oxígeno circula por el cuerpo y se expulsan el __________________ y el ______________ recorriendo el sistema respiratorio y saliendo nuevamente por las fosas nasales.
Biology
1 answer:
lana [24]3 years ago
4 0

Answer:

I will help you but I don't understand the language sorryyyy

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The answer is a black mamba.

The black mamba is predator typically found in central Africa. Not only that its scales are black but also an interior of its mouth. It moves very quickly and at any sudden movement, it is ready to slay its opponents through a rapid application of venomous strikes. <span>Its venom is highly toxic and it could kill a man for 10-15 hours after the bite if antivenom is not applied.</span>
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3 years ago
Q - Describe the Mitoses with the help of diagram. write its different phares and explain them.​
bonufazy [111]

Answer:

Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent.

Mitosis occurs in somatic cells of plants and animals. In this cell division, the two daughter cells have the same number of chromosomes as that in the parent cells.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

1.Prophase:-

It is the first visible stage in karyokinesis. The chromosomes appear as long coiled threads called chromatids. The chromatin becomes shorter, thicker and visible due to the condensation of DNA. The chromatins are now called chromosomes. Stainability of nucleus increase. Each chromosome starts to splits longitudinally into two sister chromatids. These sister chromatids are attached to each other at the centromere. The nuclear membrane and nucleolus start to disappear and by the end, it will be completely disappeared.

ii. Metaphase:-

Nuclear membrane and nucleolus completely disappears and simultaneously appearance of spindle fibers. Spindle fibers are attached to the centromere of a chromosome. The chromosomes are arranged on the equatorial plane. The process of gathering of chromosomes in equator is called congressional and plate formed is called metaphasic plate.

iii. Anaphase:-

The centromere of each chromosome splits into two sister chromatids and forms two daughter chromosomes. The daughter chromosomes are pulled towards the poles due to the contraction of spindle fibres and stretching of interzonal fibers. During polar movement, the chromosomes show different shapes i.e. J, U, V, L or I shaped in appearance. At the end of anaphase, each pole will get one set of daughter chromosomes. It is the shortest phase and is also known as a migratory phase.

iv. Telophase:-  The daughter chromosomes reach respective poles and uncoil and become thin, long and visible. The spindle fibres start disappearing and finally disappear. The nuclear membrane and the nucleolus reappear.

Two nuclei are formed at the end of telophase. Both the nuclei have the same number of chromosome as the parent cell. It is the last visible stage of karyokinetic and is also known as reorganization phase.

It is followed by cytokines or division of cytoplasm.

Explanation:

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Made of oposite charged particles (marine science)
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Answer:

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