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Leokris [45]
3 years ago
12

Cells are surrounded by a watery fluid, and they contain watery cytoplasm. Explain how the structure of the lipid bilayer is rel

ated to these two watery environments.
Biology
1 answer:
Mila [183]3 years ago
5 0
The phospholipid no later regulates the amount of water that travels in and out of the cell.
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An engineer is building a new steel skyscraper in a area with a lot of Earthquakes, Compare two systems (fixed based system and
Leokris [45]

Answer:

<h2><em><u>Base</u></em><em><u> </u></em><em><u>isolated</u></em><em><u> </u></em><em><u>system</u></em></h2>

Explanation:

<u>Fixed based system:- </u>

A fixed-base building (built directly on the ground) will move with an earthquake’s motion and can sustain extensive damage as a result. 

<u>Base isolated system:-</u>

A base isolation system is a method of seismic protection where the structure (superstructure) is separated from the base (foundation or substructure).

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>A</u></em><em><u> </u></em><em><u>base</u></em><em><u> </u></em><em><u>isolated</u></em><em><u> </u></em><em><u>system</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>much</u></em><em><u> </u></em><em><u>more</u></em><em><u> </u></em><em><u>better</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>area</u></em><em><u> </u></em><em><u>where</u></em><em><u> </u></em><em><u>there</u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>lot</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>earthquakes</u></em><em><u>.</u></em><em><u> </u></em>

5 0
3 years ago
List the four parameters of water quality measured.<br><br> Can someone tell me what this means..?
elena55 [62]

Answer:

Each station that measures the water quality characteristics....

Explanation:

like temperature and water level maybe....

5 0
2 years ago
What is the main reason that species are being lost to extinction?
Blizzard [7]
The main reason for the species extinction is for the ecological changes.
4 0
3 years ago
A gene on human chromosome 15 is expressed throughout the body. However, in the brain, only the maternal copy of the gene is exp
lord [1]

Answer:

C) Through genomic imprinting, methylation regulates expression of the paternal copy of the gene in the brain.

Explanation:

The pattern of gene expression wherein either paternal or maternal gene is expressed in specific cells while the other one is prevented from expression is known as genomic imprinting.

In the given example, the maternal copy of the gene on chromosome 15 is expressed in brain cells while its paternal copy is not expressed in these cells. Hence, the pattern of expression of this gene is regulated through genome imprinting. One of the mechanism is methylation of cytidine residues of CpG islands of the DNA that are more frequently present within promoters of the genes.

When the cytidine residues of these sequences are methylated into 5-methylcytidine, the transcription factors do not bind to these promoters preventing the expression of these genes.

Hence, methylation of cytidine residue in CpG islands of the promoters of the gene present on chromosome 15 could have silenced its expression in brain cells.

6 0
3 years ago
The actual genetic makeup of an individual is the?
nataly862011 [7]
The actual genetic makeup of an individual is its genotype.
7 0
3 years ago
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