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OleMash [197]
3 years ago
13

What is the difference between a monosaccharide and a disaccharide?

Biology
1 answer:
zmey [24]3 years ago
8 0
A monosaccharide is a single sugar unit, also called a simple sugar. A disaccharide is two monosaccharide units combined, also called a double sugar.
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You have some old plastic Petri dishes that you would like to use for pouring bacteriological agar plates. The only method of ph
trasher [3.6K]

Answer:

The lids of the Petri dishes were inadvertently left on while being sterilized

Explanation:

  • The process of eliminating any microbe from a particular object to achieve a sterile aseptic environment is termed as sterilization.
  • Sterilization mainly aims to either remove, kill or make any microbe inactive by using various means such as irradiation, heat, pressure, etc.
  • In the given question radiation is used to sterilize the Petri dishes and thus, if sterilization is successful there should not be any contamination.
  • However, since there is contamination present amongst the bacterial colonies growing on agar plated in the Petri dishes this shows that the sterilization has not been done successfully and a possible reason for this could be that while sterilizing the<em> lids of the Petri dishes were kept on. </em>
8 0
3 years ago
Which of the following is an isotope pair used to determine the age of fossils
mote1985 [20]
Carbon 14 is a radioactive isotope of carbon
3 0
3 years ago
Synopsis: Jenny has been working hard all summer on her tomato garden. Recently, she noticed that insects have been eating her t
likoan [24]

Answer:

This question is asking to match each sentence to the steps involved in the scientific method. The steps based on the order of the sentence are:

1. Formulating hypothesis

2. Testing with an experiment

3. Analysis of results

4. Make observation/Ask a question

5. Conclusion

6. Do background research

Explanation:

The scientific method involves a series of steps that aims at solving a problem or providing an answer to a question about nature. The steps in order are:

- Making an observation/Asking a question

- Do a background research

- Formulate a hypothesis

- Testing hypothesis with an experiment

- Analyze result of experiment

- Draw conclusions

According to this question regarding Jenny, she employs the scientific method to perform an experiment. However, the steps of the scientific method involved in her experiment is disorderly. The matching step of scientific method with each statement is:

1. Jenny states that if she sprays her vegetables with a natural, homemade solution to help fight the bug problem, then her vegetables will still grow to the same size as they would if she used store bought pesticides_FORMULATE A HYPOTHESIS__

2. Jenny sprays one third of her vegetables with store bought pesticides , one third of her vegetables with her homemade solution, and does not spray the remaining third (her control group) __TESTING HYPOTHESIS WITH AN EXPERIMENT___

3. After one week, Jenny compares and tests the differences in her vegetables___ANALYSIS OF RESULTS___

4. Jenny wonders how she can protect her plants from bugs without harming the vegetables___MAKE AN OBSERVATION/ASK A QUESTION__

5. Jenny determines that her homemade solution was just as effective as the store-bought pesticides__DRAW CONCLUSIONS___

6. Jenny goes to the library and looks up different kind of pesticides and their effect on vegetables and also looks up natural remedies to help solve her bug problem__DO A BACKGROUND RESEARCH___

4 0
3 years ago
Information is detected by the eye and sent to the brain by which of the following structures?
S_A_V [24]
Sensory neurons
Process
Light falls onto retina. The retina generates an impulse that is carried to the brain by the sensory neurons. An impulse is not carried by blood vessels, so that crosses out A. A muscle cant carry impulses either. Spinal cord isnt the answer because it doesnt have to go through the spine because the eye and brain is so close together
4 0
4 years ago
1
arlik [135]

Answer:

i have been going over punnett squares with my 7th grade science class and on what it looks like to me 62.5%

Explanation:

because baced off of the second genration and my test from yesterday out of all 8 because there are 5 little y and there are full out 3 upercase ys and if you find the precent of 5 out of 8 it gets you 62.5 i hoped this helped and i hope it is right

4 0
3 years ago
Read 2 more answers
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