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11Alexandr11 [23.1K]
3 years ago
12

Why is about half of all freshwater on Earth is inaccessible to humans?

Biology
2 answers:
zimovet [89]3 years ago
6 0
It is frozen in glaciers
larisa86 [58]3 years ago
4 0
It is frozen in glaciers
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What organelle is found only in plant cells​
mixer [17]

Answer:

chloroplasts is the only organelle that is found in plant cells

4 0
3 years ago
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Most proteins destined to enter the endoplasmic reticulum _________. Group of answer choices are transported across the membrane
Svetlanka [38]

Answer:

Begin to cross the membrane while still being synthesized-C

Explanation:

The Endoplasmic Reticulum is a part of the endomembrane system of the cell which is mostly reponsible for the synthesis and modification of proteins, although synthesis of lipids in plant and animal are carried out here

For more synthesis of proteins, it

needs to be further transported into the Rough endoplasmic reticulum- the designated site for secretion after synthesis of proteins.

Also it has been found out that when this proteins enter the Endoplasmic Reticulum, they start to cross the membrane while still being synthesized.

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4 years ago
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Which of the following statements provides an example of responsiveness?​
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I was wondering too??
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3 years ago
A ______ is a circular band of muscles designed to prevent movement into or out of a body cavity or organ. Multiple choice quest
grandymaker [24]

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sphincter

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circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.

8 0
3 years ago
El hielo flota sobre el agua. Le ocurre igual a un metal sólido sobre su correspondiente fundido?
Iteru [2.4K]

Un metal sólido no flota sobre su correspondiente fundido poque es mas denso que el mismo.

Que una sustancia flote en otra depende de sus densidades. La densidad es el cociente entre la masa y el volumen de un objeto. Los objetos menos denso flotan en los mas densos.

En general, los sólidos son mas densos que los líquidos, y estos que los gases. Esto se debe a las fuerzas de atracción que hacen que la misma masa ocupe menos volumen en el caso de los sólidos. Este es el caso de los metales sólidos que no flotan en su correspondiente fundido.

El hielo flotando sobre el agua es una excepción a esta regla general. El puente de hidrógeno en el agua hace que este tenga mas volumen que el liquido y por lo tanto sea menos denso.

Un metal sólido no flota sobre su correspondiente fundido poque es mas denso que el mismo.

Aprende mas: brainly.com/question/3944963

5 0
2 years ago
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