A knife with a sarp edge that has saw like notches or teeth used to slice bread, fruits and vegetables

I investigated sexual and asexual reproduction as well as the processes of cellular division by mitosis and meiosis Hypothesis:

STALIN [3.7K]

Answer:

what are we predicting, the type of division or what the outcome will be

4 0

3 years ago

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Which five organs make up the vestibular system? A. Three semicircular canals and two otolith organs B. Two semicircular canals

enot [183]

Answer:

Option A

Explanation:

The vestibular system is a part of the inner ear that provides the most important contribution to the sense of balance and coordinating movement with balance. This system is made up of two parts which are the three semicircular canals and the two otolith organs. The two otolith organs are the saccule and the utricle. The utricle is sensitive to changes with regards to horizontal movement and the saccule provides information about vertical acceleration. They are able to do this due to their orientation in the inner ear providing spatial orientation with regards to movement and balance. the three semi circular canals includes the horizontl, poterior and the superior semicircular canals. they provide sensory inputs.

5 0

3 years ago

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The bacterial transduction experiments done by Hershey and Chase, and the bacterial transformation experiments done by Griffith,

Katarina [22]

Answer:

Hershey Chase and Griffith experiment supported the same conclusion which was: DNA is the molecular substance of genetic inheritance.

Explanation:

Both experiments have was based on different phenomenon and techniques to prove same conclusion.

Hershey and chase conducted an experiment via bacteriophage which consists to DNA and protein coat that infects bacterial cells. He proved the DNA as genetic material by the help of transduction mechanism (Incorporation of Bacteriophage DNA in to bacterial cells). He used two group of Bacteriophage 1st group of Phage contain radioactively labelled proteins by Sulphur 32 isotope. While 2nd group contain Bacteriophage having P32 labelled DNA to infect Bacterial cells. After the infection, the Reaction tubes subjected to centrifuge and presence of radioactivity was determined in pellet and supernatant. The 1st group show radioactivity in supernatant while 2nd group shows racdioactivity in pellet or bacterial cells.

Griffiths just hypothesized a substance that can be transmitted from dead organism to alive organisms with the help of transformation phenomenon (uptake of Genetic material from the surrounding or environment). He conducted his experiments on Streptococcus pneumonia avirulent and virulent species. By mixing dead virulent species and live avirulent species and injecting into the mice results in the death of an experimental animal. While alone dead virulent species and live avirulent species fail to cause disease in mice.

8 0

3 years ago

In the example below the scientific method is used to solve an everyday problem. Match each component to the appropriate step in

joja [24]

Answer:

1. My toaster doesn't toast my bread. --> Observation

2. Why doesn't my toaster work? ---> ask questions

3. There is something wrong with the electrical outlet. ---> Hypothesis

4. If there is something wrong with the outlet, my coffeemaker also won't work when plugged into it. ---> Prediction

5. I plug my coffeemaker into the outlet. ---> Experiments

6. My coffeemaker works. ---> Result of experiment

Note: The question is missing some parts. The complete question is given below.

In the example below the scientific method is used to solve an everyday problem. Match each component to the appropriate step in the scientific method:

1. My toaster doesn't toast my bread.

2. Why doesn't my toaster work?

3. There is something wrong with the electrical outlet

4. If there is something wrong with the outlet, my coffeemaker also won't work when plugged into it.

5. I plug my coffeemaker into the outlet.

6. My coffeemaker works.

Explanation:

The scientific method involves the following; observations, ask questions, form a hypothesis, make predictions, design experiment to test the hypothesis, obtain results, analyze results, draw conclusions.

1. My toaster doesn't toast my bread is an observation made by the person.

2. The person then proceeds to asks questions based on the observation; Why doesn't my toaster work?

3. The next step involves making a hypothesis to try to explain the observation; "There is something wrong with the electrical outlet"

4. A prediction is then made, which is an expected outcome if the hypothesis is correct; "If there is something wrong with the outlet, my coffeemaker also won't work when plugged into it".

5. Next, an experiment is conducted to test the hypothesis whether it is true or not; "I plug my coffeemaker into the outlet".

6. Results are obtained from the experiment which in this case is, "My coffeemaker works". The result is then analyzed to see whether it supports the initial hypothesis or not. Depending on the results, new hypothesis is made and further experiments conducted until a conclusion is reached.

7 0

3 years ago

Recycling and changing the cell membrane is the major function of which organelle

Feliz [49]

Recycling and changing the cell membrane is the major function of the organelle Golgi apparatus.This organelle is also referred to as Golgi complex, Golgi body, or simply Golgi.
It is a membrane-bound organelle found in eukaryotic cells (cells with clearly defined nuclei) . The main function of the Golgi apparatus is transporting, modifying, and packaging proteins and lipids into vesicles

5 0

3 years ago

A knife with a sarp edge that has saw like notches or teeth used to slice bread, fruits and vegetables​

A knife with a sarp edge that has saw like notches or teeth used to slice bread, fruits and vegetables