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shtirl [24]
2 years ago
10

what is a flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surrounding

s
Biology
1 answer:
neonofarm [45]2 years ago
8 0

Answer:

Term Lipid Bilayer

Explanation:

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If you mean a specific system then the reproductive system...but i haven't the slightest idea as to anything else to do with your question...
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3 years ago
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PLEASE HELP ME ASAP !!!!<br> Explain the evidence (4 parts) for evolution? Complete answer please
ivanzaharov [21]

First of all, let us remember that "fitness" is defined as living enough to reproduce. If an organism has survived long enough to reproduce, it has done its part as far as survival is concerned, and id deemed "fit".

1) There is a struggle to survive. LIFE IS HARD. Survival is affected by limited resources, predators, and environmental factors. Organisms must compete with other organisms to obtain the necessary resources to survive. Organisms must evade predators and find successful ways to survive in challenging environments. Many more offspring are produced than those who stay alive long enough to reproduce themselves. Some offspring survive to adulthood and reproduce, many do not.

2) Traits in offspring are inherited from their parents.

3) There is variation in these inherited traits in the offspring. Most individuals among the offspring will not be identical to each other or their parents, but at the same time will carry the traits of their parents.

4) As conditions change, variations in traits may become more favorable than others for survival. Individuals who have the traits that enable them to survive and reproduce will pass these traits down to the next generation. Go back to step #1.

5 0
3 years ago
Which methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bac
Damm [24]

Answer:

Method which is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria is control of both RNA splicing and chromatin remodeling.

Explanation:

There is a difference in the gene expression of the prokaryotes and eukaryotes. In prokaryotes, transcription and translation occur simultaneously in the cytoplasm, and gene regulation occurs at the transcriptional level. In eukaryotes gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.

Prokaryotic cells can only regulate gene expression by controlling the amount of transcription. As eukaryotic cells evolved, the complexity of the control of gene expression increased. For example, with the evolution of eukaryotic cells came compartmentalization of important cellular components and cellular processes. A nuclear region that contains the DNA was formed. Transcription and translation were physically separated into two different cellular compartments. It therefore became possible to control gene expression by regulating transcription in the nucleus, and also by controlling the RNA levels and protein translation present outside the nucleus.

5 0
3 years ago
Which of these is an example of inductive reasoning? Which of these is an example of inductive reasoning? If two species are mem
djyliett [7]

Answer;

A) Hundreds of individuals of a species have been observed and all are photosynthetic; therefore, the species is photosynthetic.

Explanation;

-Inductive reasoning is a logical process in which multiple premises, all believed true or found true most of the time, are combined to obtain a specific conclusion.

-The inductive method starts with many observations of nature, with the goal of finding a few, powerful statements about how nature works (laws and theories). In the deductive method, logic is the authority.

6 0
3 years ago
. During development, some cells become liver cells, somet
Alex

Answer:

Cellular differentiation.

Explanation:

Cellular differentiation is the process in which a cell changes from one call type to another. Usually, the cell changes to a more specialized type. Differentiation of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.

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