BIOLOGY HIGH SCHOOL

What is the general trend in climate (both temperature and precipitation) over the past 50 years for the city of Seattle?

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Answer 1
Answer: Typically, Seattle's temperature varies from 36 degrees to 77 degrees Fahreinheit and is rarely below from 27 degrees or above 86 degrees Fahrenheit. The probable precipitation is most likely around December occuring in 68 percent of days. Precipitation is least likely around August occuring in 26 percent of days.

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Which structures are found in eukaryotic cells?

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Oh! Just did this in school!
Eukaryotic cells are more complicated than prokaryotic. Eukaryotic cells have DNA in their nucleus, they have more than one chromosome, lysosomes, preoxysomes, mitochondria, cytoskeleton, golgi apparatus

The major body system that coordinates the reception of stimuli and transmits messages throughout the body is known as __. The Lymphatic System The Muscular System The Nervous System The Integumentary System

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The correct answer to this question is: The Nervous System

It is composed of nerves and cells that transmit signals and messages to and fro the brain and throughout the body parts. It is divided into to two parts namely the central and the peripheral nervous systems.

Which one of these chordate groups lacks a post-anal tail and a notochord as adults?

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The answer is tunicates.

Tunicates belong to phylum Chordata. Thus, it is expected to have dorsal nerve cords and notochords. But, as adults, they lack a post-anal tail and the notochord. The reason they belong to phylum Chordata is that their larval stages have all the characteristics of phylum Chordata - nerve cords, post-anal tails, and notochord. During metamorphosis to adults, tunicates lose these characteristics.

Plants have a cell wall made of cellulose. What is the function of the cell wall in plants? A) The cell wall controls division of the cell. B) The cell wall provides structure to the cell. C) The cell wall controls the functions of the cell. D) The cell wall manufactures proteins for the cell.

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The main job of the cell wall made out of cellulose would be to provide structure to the cell - B. 

Having structure through the cellulose present in cell walls is essential for plants because their structure often also dictates their function. 

A the cell wall controls division of the cell

Access to potable water is most heavily limited by

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The access is most heavily limited by Climate

In an extremely dry and hot climates such as desert, it will be incredibly hard to access potable water because they evaporate really quickly

Meanwhile in a wet and cool climates such as rain forest, it will be extremely easy to access potable water

Answer: DDDDDDDDDDDDDDDD

Explanation:

got it right

A selectively permeable membrane separates two solutions. Water is able to pass through this membrane; however, sucrose (a disaccharide) and glucose (a monosaccharide) cannot pass. The membrane separates a 0.2-molar sucrose solution from a 0.2-molar glucose solution. With time, how will the solutions change?a. Nothing happens because the two solutions are isotonic to one another.b. Water enters the sucrose solution because the sucrose molecule is a disaccharide and thus larger than the monosaccharide glucose.
c. Water leaves the sucrose solution because the sucrose molecule is a disaccharide and thus larger than the monosaccharide glucose.
d. The sucrose solution is hypertonic and will gain water because the total mass of sucrose is greater than that of glucose.
e. After the sucrose dissociates to two monosaccharides, water will be osmostically drawn to that side of the membrane.

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Answer:

a. Nothing happens because the two solutions are isotonic to one another.

Explanation:

Two solutions of the same molarity are separated from each other by a membrane that allows water molecules but not the glucose or sucrose to move across it. Movement of water across the selectively permeable membrane occurs only when two solutions have different concentrations of solutes. In that case, water moves from a hypotonic solution towards a hypertonic solution. Since both sucrose and glucose solutions have the same tonicity, there would not be any change in the solution.
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