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KengaRu [80]
3 years ago
9

Which processes occur in a plant embryo before it pushes out of the soil

Biology
1 answer:
dimaraw [331]3 years ago
7 0
Fertilization easyyyyy
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Asi todas las células son muy pequeñas. ¿Qué limitaciones físicas y metabólicas determinan el tamaño celular? ¿ A qué problemas
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Answer:

- Limitación física: la relación superficie volumen es baja para un intercambio eficiente de sustancias con el medio

- Limitación metabólica: en principio no existen limitaciones metabólicas  

Explanation:

La membrana celular es una estructura fundamental para el funcionamiento celular, ya que de la membrana celular depende el intercambio de nutrientes y desechos por parte de la célula con su entorno (medio extracelular). En células muy grandes la relación entre la superficie cubierta por la membrana y el volumen celular es muy baja, lo cual dificulta el intercambio de compuestos (tanto nutrientes como desechos) con el medio extracelular. Por otro lado, los mecanismos metabólicos en principio no deberían verse afectados por el tamaño celular. Por ejemplo, los perfiles metabólicos de expresión génica son independientes del tamaño celular y están adaptados a diferentes tipos celulares, desde una célula huevo que es proporcionalmente varias veces más grande que un célula diferenciada la cual sin embargo no ha perdido la capacidad de dividirse, un ejemplo de esto son las células cancerosas derivadas de células epidérmicas diferenciadas las cuales poseen la capacidad de dividirse y de proliferar indiscriminadamente.

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) during lactation, the caloric needs of the mother increase by ________ calories a day
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4 years ago
29. In addition to carrying nutrients and wastes, which other function does water have in the body?
Anarel [89]

Answer:

Water controls body temperature.

Explanation:

One of the functions of water is to regulate the internal temperature of the body in response to the external temperature. Sweat is the main means by which water prevents the human body from too much heat (over heating) when the outside temperature is too high. We must allow the sweat to evaporate to maintain stable body temperature.

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4 years ago
Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!!
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My guess would be option A.

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Antibiotics work on bacterial infections. These chemicals kill the bacteria cells but do not affect cells that make up the body. For example, many antibiotics interrupt machinery inside bacterial cells that builds the cell wall.

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When members of a species compete,what do they compete for?
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They compete for resources in the community
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