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sertanlavr [38]
4 years ago
15

SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET IT RIGHT ALSO PLEASE EXPLAIN HOW YOU GOT THE ANSWERS!!!!! PLEAS

E!!!!! THERE 3 ANSWERS TO THIS THAT A HINT MY TEACHER GAVE US !!!!!!!!!! PLEASE!!!!

Biology
1 answer:
Fiesta28 [93]4 years ago
6 0

Answer:

D, B, A

Explanation:

Since C and E are completely false

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Which is the best procedure of separating a mixture of maize bean and sugar​
Olegator [25]

Answer:

here are several methods of separating mixtures. The common ones are:

 1. Winnowing

The wind is used to separate wharves (chaff), small sticks, and dry leaves, from grains or seeds by blowing the chaff away.

Chaff is usually lighter than the grains.2. Sieving

a sieve is used to separate mixtures of particles of different sizes. For example stones from flour.

The larger particles remain on the sieve while the finer ones pass through.

3. Picking

Here the large particles are separated from smaller ones by observing them and using the hands to remove the unwanted ones.

For example, stones are separated from rice or beans in this way.

4. Filtering

This method is used to separate a liquid from particles that cannot dissolve in it.

For example, separating sand from water using filter paper or piece of cloth.5. Decanting

This is when a liquid is separated from large particles of solids by pouring the liquid out gently.

For example, pouring off kerosene that has mixed with tiny ball bearings.

Explanation:

4 0
3 years ago
Vertebrates are a subphylum to the _____.
weqwewe [10]
Its chordata phylum

beacuse with currently about 64000 species described as chordata phylum
7 0
3 years ago
___________ is an autosomal recessive disorder that is more common in people of Jewish descent. It involves a lysosomal dysfunct
Elina [12.6K]

Answer:

Tay Sachs

Explanation:

Tay Sachs is a neurodegenerative disorder caused by the deficiency of enzyme hexosaminidase A in lysosome. Lysosome is responsible for degradation of lipid molecules which it carries out by the help of hexosaminidase A enzyme. In absence of the functional enzyme, lipids build up in lysosome which ultimately damages the cell and the tissue. Nerve cells are damaged the most in this disorder.

It is an autosomal recessive disorder which means that the mutant allele must be present in two copies for the production of symptoms. Symptoms are hypotonia, psychomotor regression etc. Its frequency is much higher in Jewish people of Ashkenazi descent. 1 in 30 Ashkenazi Jewish people has the mutant version of the gene.

8 0
3 years ago
Although all the anatomical parts of muscle work together to give it it's characteristics, which of the following proteins liste
choli [55]

Thick myosin filaments of muscle are associated with the characteristics of contractility.

Explanation:

The muscle contractility is provided mainly the thick and the thin muscle filaments. Thick muscle filaments are constituted by the contractile protein, myosin. Thin filament is composed of actin.

Owing to its thickness, myosin protein is made up of six chains of polypeptides with four lighter (molecular mass is low) ones and two heavier (molecular mass is high) ones.  

The two heavier polypeptide chains twist together like two twisted golf clubs and forms a coiled-rod like structure. This coiled structure looks like a two stranded double helix.

The globular heads point out from the main body in each coiled structure and adheres with the head of the actin filaments. The tails made up of lighter chains point towards the M lines of the sarcomere.

During muscle contraction, the myosin head will attach with its myosin-binding site.

6 0
4 years ago
Las estructuras que facilitan la union de las venas y arteriasel intercambio gaseosos entre los dintistos tejidos y la sangre qu
AfilCa [17]

Answer:

Intercambio de oxígeno y dióxido de carbono

Por 

Rebecca Dezube

, MD, MHS, Johns Hopkins University

Última revisión completa jun. 2019

HACER CLIC AQUÍ PARA LA VERSIÓN PARA PROFESIONALES

La principal función del aparato respiratorio es inhalar oxígeno y eliminar dióxido de carbono. El oxígeno inhalado penetra en los pulmones y alcanza los alvéolos. Las capas de células que revisten los alvéolos y los capilares circundantes se disponen ocupando el espesor de una sola célula y están en contacto estrecho unas con otras. Esta barrera entre el aire y la sangre tiene un grosor aproximado de una micra (1/10 000 cm). El oxígeno atraviesa rápidamente esta barrera aire–sangre y llega hasta la sangre que circula por los capilares. Igualmente, el dióxido de carbono pasa de la sangre al interior de los alvéolos, desde donde es exhalado al exterior.

La sangre oxigenada circula desde los pulmones por las venas pulmonares y, al llegar al lado izquierdo del corazón, es bombeada hacia el resto del organismo (véase Función del corazón). La sangre con déficit de oxígeno y cargada de dióxido de carbono vuelve al lado derecho del corazón a través de dos grandes venas: la vena cava inferior y la vena cava superior. A continuación, la sangre es impulsada a través de la arteria pulmonar hacia los pulmones, donde recoge el oxígeno y libera el dióxido de carbono.

Intercambio de gases entre las alveolas y los capilares

Para mantener la absorción de oxígeno y la emisión de dióxido de carbono, entran y salen de los pulmones entre 5 y 8 L de aire por minuto, y cada minuto se transfiere alrededor del 30% de cada litro (cerca de tres décimos de galón) de oxígeno desde los alvéolos hasta la sangre, aun cuando la persona esté en reposo. Al mismo tiempo, un volumen similar de dióxido de carbono pasa de la sangre a los alvéolos y es exhalado. Durante el ejercicio, es posible respirar más de 100 L de aire por minuto y extraer de este aire 3 L de oxígeno por minuto. La velocidad de entrada del oxígeno en el organismo es una medida importante de la cantidad total de energía consumida por este. La inspiración y la espiración se llevan a cabo gracias a los músculos respiratorios.

4 0
3 years ago
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