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Dima020 [189]
3 years ago
8

A student measured the power of a motor operating at different temperatures. The student recorded a total of 11 measurements, on

e at each 2 degree interval between 10°C and 30°C. Which change in the procedure would most improve the validity of conclusions based on this investigation?
Biology
1 answer:
user100 [1]3 years ago
5 0
As a rule of thumb, in order to improve the reliability and accuracy of an experiment, it is best if the experiment is repeated several times. The increased number of trials ensures that the readings observed have minimal random error.
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How would an increase in the number of producers affect the nitrogen cycle? Select all that apply.
Flauer [41]

Producers are typically plants, so I believe the correct answers would be 2, 3, 4.

3 0
3 years ago
Mia conducted a five hour experiment. She used a liquid solution. The solution decreased by 9/8 ounces every hour for 5 hours. A
sasho [114]

Given:

The solution decreased by \dfrac{9}{8} ounces every hour for 5 hours.

Remaining solution at the end of the experiment = \dfrac{99}{8} ounces.

To find:

The initial amount of solution.

Solution:

Let the initial amount of the solution be x.

The solution decreased by \dfrac{9}{8} ounces every hour for 5 hours.

Total decreased amount  =\dfrac{9}{8}\times 5

                                          =\dfrac{45}{8}

Initial amount = Remining amount + Decreased amount of solution.

x=\dfrac{99}{8}+\dfrac{45}{8}

x=\dfrac{99+45}{8}

x=\dfrac{144}{8}

x=18

Therefore, the initial amount of solution is 18 ounces.

5 0
3 years ago
Help please!!!
Igoryamba

The biofilm can present one of the most important species of microorganisms, depending on the duration and its location. Gram-positive, Gram-negative and yeast. In addition, the cellular elements may be attached to the biofilm, such as platelets, for example, when the biofilm is installed on the blood-soaked surface.Several factors contribute to the formation of biofilms. The biofilm can present one of the most important species of microorganisms, depending on the duration and its location. Gram-positive, Gram-negative and yeast. In addition, the cellular elements may be attached to the biofilm, such as platelets, for example, when the biofilm is installed on the blood-soaked surface.Several factors contribute to the formation of biofilms, depends primarily on the number and type of cells present in the liquid to which the surface is exposed and the rate of flow of this liquid across the surface. The physical chemical properties of the surface, the nutritional composition and ambient temperature will also interfere with this speed. The presence of antimicrobials in the medium may affect the formation of biofilms.


hope this helps!

4 0
3 years ago
How can I set up a wildflower classification key?
s344n2d4d5 [400]

Answer:

There are 3 methods to set up a wildflower classification means discovering a new flower. Those methods are discussed below in the explanation section.

Explanation:

Method one (Identification tools using):

  1. Search the about of the flower in the flower dictionary or flower database.
  2. Use any app which can identify flower such as Flowerchecker, Naturegate, etc.
  3. Take photos of the plant and post it on Flicker to get more information.
  4. Try google photos for searching about the plant by its picture.

Method two( Measuring the physical character of the plant):

  1. Measure the overall height of the plant.
  2. Measuring the width of the plant.
  3. Look at the flower to check how the flower is arranged on the stem.
  4. Count the petal number of the flower.
  5. Identify the color of the petals.
  6. Check the shape and texture of the stem.
  7. Check the shape, size, and arrangement of the leaves in the plant.
  8. Use this collected information to identify the flower in a plant database or encyclopedia.

Method three (Identifying the Flower’s Location and Blooming Time):

  1. Use the climate and terrain to determine the type of the flower.
  2. Observation of the factors in the geographic location to identify the flower.
  3. Find out the time of year when the flower bloomed.
  4. Identify the flower in an online database or encyclopedia using the collected information.

By doing this, you can set up a wildflower classification key and can find out the kingdom, family etc of the flower.

3 0
3 years ago
please help asap i have a time limit and if you give a correct answer i’ll give that brain thing tysm
Studentka2010 [4]

Answer:

b.synthetic;oil

Explanation:

oil makes plastic

4 0
3 years ago
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