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Mkey [24]
3 years ago
12

What prevents blood flowing the wrong way round through the circulatory system?

Biology
1 answer:
son4ous [18]3 years ago
6 0

Answer:

The aortic and pulmonary valves, the close to prevent blood from flowing back into the ventricles.

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How do consumers get nitrogen?
elixir [45]
Plants get nitrogen from there roots then when the consumers eat the plant the nitrogen gets passed to them
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3 years ago
15. What is the function of the electrons as they move along the electron transport chain?
mihalych1998 [28]

Answer:

The direct purpose of moving electrons down the electron transport chain is to pump protons (hydrogen ions) into the intermembrane space. This creates a chemiosmotic gradient that the cell uses to generate ATP by selectively allowing hydrogen ions to move back into the mitochondrial matrix.

Explanation:

8 0
3 years ago
Un estudiante presenta una condicion especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma e
erica [24]

La respuesta correcta para esta pregunta abierta es la siguiente.

A pesar de que se te olvidó incluir las opciones o incisos para responder a tu pregunta, podemos comentar lo siguiente, basándonos en nuestro conocimiento sobre la materia.

Podemos pensar que la hormona que no produce este niño que sufre de gigantismo es la hormona llamada somatotropina. Esta hormona es muy importante durante el crecimiento y desarrollo del niño en la infancia porque secreta la adenohipófisis, una glándula vital para el correcto y proporcionado desarrollo en la etapa de la niñez.

Entonces, si no hay una secreción correcta de la hormona somatotropina, ésta hace que el niño desarrolle la condición llamada gigantismo.

Entonces podríamos decir lo siguiente.

Un estudiante presenta una condición especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma edad y se descarta que la causa sea un problema heredero podemos suponer que este estudiante tiene insuficiente de la hormona de crecimiento o somatotropina. Esta hormona no ingresa a las células en su mecanismo de accion por ser una derivación de aminoácidos.

7 0
3 years ago
Where do fossil fuel emissions come from? What is the main cause of pollution in general?
Eva8 [605]

Answer:

Most of the nitrogen oxides released in the U.S. due to human activity are from the burning of fossil fuels associated with transportation and industry. When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain.

Explanation:

4 0
3 years ago
Read 2 more answers
One of the factors that increases body heat during adaptive thermogenesis is the production of ___________ by skeletal muscle. t
Jlenok [28]

The answer is Production of organism, it happens in all warm-blooded animals, and also in a few species of thermogenic plants for example the Eastern skunk cabbage, the Voodoo lily, and the giant water lilies of the genus Victoria, the lodgepole pine dwarf mistletoe.  To keep the temperature up through shivering has only one method, it produce heat because of the conversion of the chemical energy of ATP into kinetic energy causing almost all of the energy to show up as heat.

7 0
3 years ago
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