Semipermeable membranes of cells regulate the movement of materials into and out of the cell, allowing the cell to maintain a balance of substances, a process known as homeostasis.
The function of the semipermeable membrane in cells is to regulate the movement of material into and out of the cell. While cellular respiration, photosynthesis, and cellular metabolism all happen within cells, they do not directly pertain to the function of the cell membrane itself. The membrane's semipermeable nature allows certain substances to pass through while preventing others, maintaining a balance of nutrients, ions, and other substances within the cell - a process known as homeostasis.
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Answer:
Explanation:
Polygenic
B. The color of flowers is compared.
C. The weight of three-week-old chickens is determined.
D. The volume of carbon dioxide gas is determined.
The right option is B. The color of flowers is compared.
Qualitative observation is a type of observation that deals with data or information that can be observed with the senses such as sight, taste, touch, and smell. Qualitative observation does not make use of measurements such as height or numbers, but it describes the appearance of an object using descriptive language. Qualitative observations include colors, shapes, and textures of objects.
The color of the flowers is considered a qualitative observation.
Further Explanation:
The people observe things in plenty of ways. Some use numbers in their observations while others use their senses while observing. The later ones are called qualitative observations.
Qualitative observation accounts for the data which is observed through our senses such as smell, taste, touch, sight, and hearing. These observations do not include numbers or measurements. For example shape, color, and texture of materials display qualitative observations.
While observing things qualitatively, one can just see and determine the color and shape of leaves or flowers or fruits which does not include numbers in any way. This is done by the sense of sight. The qualitative observations are not accurate, not measurable, and are not recorded as numbers.
On the other hand, quantitative observations are invariable, measurable, accurate, and can be recorded as numbers. The instrument used while recording the observations are balances, rulers, beakers, and thermometers.
Here, the color of the flowers can be observed through naked eyes which then can be compared. The color observation is not measured in numbers or through any measurable device. It can simply be observed through sight. Therefore, it is a qualitative observation.
The height of the radish seedlings, weight of three weeks old chicken, and volume of carbon dioxide gas are all determined through measurable instruments. The observed height, weight, and volume are measured and written in numbers. As a result, these observations are considered as quantitative observations.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Qualitative Observations
Keywords:
Qualitative observations, shape, balances, height, texture, color, weight, volume, texture, non-accurate, non-measurable.
pure water
Great Salt Lake
saliva
ammonia
Answer:
Pure water and Saliva
Explanation:
Pure water has a pH of about 7
Your saliva has a pH of about 6
The Great Salt Lake has a pH of about 10
Household ammonia has a pH in between 11 and 12
b) a component of your overall sense of self
c) an ill-defined weakness of character
d) a character flaw that remains well hidden
Here is you reliable answer:
Answer:
Transpiration
Explanation:
b. Scientists often repeat one or more steps several times.
c. Sometimes scientists forget to perform some of the steps.
d. The steps can be performed only once but in any order.
The correct option is B.
The scientific method refers to the technique which scientists used to carry out scientific investigations about observed phenomenon. The scientific method is made up of many steps and the steps are described as non linear because, scientists sometimes have to repeat some of the steps several time in order to ensure that they are on the right track. Repetition is very important in scientific investigations; it is used to ensure that the results obtained are accurate and bias is minimized.