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Taya2010 [7]
3 years ago
14

2. The ______________ is a semipermeable membrane that forms a boundary between the cell and the external environment.

Biology
2 answers:
poizon [28]3 years ago
6 0
The cell membrane is the answer hope I. Helped
Natalija [7]3 years ago
4 0
I think it is C. Vacuole 
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When Charles Darwin published his radical theory of evolution by natural selection in 1859 it was attacked by many early biologi
irina1246 [14]

Answer:

Empirical evidence of his ideas

Explanation:

The scientific process involves the formulation of hypotheses that enable to answer questions about the real world, and then to carry out experiments or observations that are used to confirm (or reject) such predictions. In the last 160 years, Darwin's ideas on 'descent with modification' have constantly been subjected to experimental assessment, and obtained data confirmed his observations. For example, molecular evidence based on the DNA and RNA -which constitute the genetic material of all living organisms- has shown the conservation of this process. In consequence, molecular evidence has been used to construct 'evolutionary' phylogenetic trees from DNA/RNA sequences. Moreover, evidence in genetics has shown the critical role played by mutations in the mechanism of natural selection proposed by Darwin, thus also confirming his theories. These are only some examples, and supporting evidence confirming Darwin's ideas has been collected from different research fields ranging from ecology to molecular biology.

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3 years ago
URGENT: (Blank) is an well-tested explanation that tries to answer a “why” question of the natural world.
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Answer:

Children

Explanation:

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3 years ago
Choose the true answer(s) from the choices below that best describe electrical force.
jonny [76]

Answer:

Choose the true answer(s) from the choices below that best describe electrical force.

Electrical force is found between two charged objects.

Electrical force is a contact force between two objects.

Electrical force can be seen between objects with positive and negative

Explanation:

The above statements best describes the electric force as it entails electric charge between two objects that are positively charged. It could be while in contact especially when one is positively charged and the second is negatively charged.

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3 years ago
The molecules processed on the rough endoplasmic reticulum are located in the:
nydimaria [60]

Answer:

They are located in the ribosomes.

4 0
2 years ago
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Giving all the jazz! How many genes are needed to control a single-gene trait?
ElenaW [278]

Answer:

One.

Explanation:

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