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lord [1]
2 years ago
11

In science a hypothesis is useful only if it can be

Biology
1 answer:
Evgen [1.6K]2 years ago
7 0

Answer:

In science a hypothesis is useful only if it can be <u><em>tested</em></u>.

Explanation:

In a scientific experiment, a hypothesis can be described as a tentative experiment that can be tested through observations and experimentation. The results inferred from the experiments can prove whether a hypothesis was correct or wrong. Hence, a hypothesis is a very important part for the scientific method of research. The validation of a hypothesis through experimentation brings about theories, facts, laws etc. A hypothesis is made in response to a scientific question.

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When making yogurt, bacteria and milk are mixed together and set in a warm area. The container is sealed and no gasses are allow
Ivenika [448]

Answer:

When making yogurt the tart flavor get in the end is more likely because the bacteria have carried out a type of respiration named lactic acid fermentation (option C).

Explanation:

The process of obtaining yogurt from whole milk involves the association of the bacterial species Streptococcus and Lactobacillus. In order to carry out the lactic acid fermentation that produces yogurt, the bacteria act in a different way:

  1. Streptococcus is in charge of removing the oxygen from the milk product.
  2. Lactobacillus promotes the conversion of lactose sugar into lactic acid.

This fermentation process  leads to the conversion of milk into a coagulated and tart flavor product.

Other options are not correct because:

<em>     A.  </em><u><em>Photosynthesis </em></u><em>: is the process that occurs in plants to obtain chemical energy from sunlight.</em>

<em>      B.  </em><u><em>Alcoholic fermentation</em></u><em>:  in this chemical process alcohol is obtained from the fermentation of a sugar.</em>

<em>      D.  </em><u><em>Aerobic cellular respiration</em></u><em>: does not involve fermentation, but the series of processes that convert glucose into energy.</em>

6 0
2 years ago
A hydra is an aquatic organism that lives in fresh water. During reproduction an outgrowth begins to form on the parent. The out
maksim [4K]

The answer is; asexual reproduction

In specific, this type of asexual reproduction is called budding. In this type of reproduction, the offspring is completely identical to the parent and there is little room for variation as in the case of sexual reproduction. Other living organisms that exhibit this type of reproduction are yeast, bacteria, and protozoans.


7 0
2 years ago
Read 2 more answers
Grand Canyon is getting wider every day. What is making the canyon wider?
ira [324]

The Grand Canyon of Arizona is one of world’s largest and steepest canyons. It ranges up to 277 miles long and 18 miles wide. Its formation is carved due to the erosive power of the water’s current.  As heavy rains continue to occur, more rocks and stones erode and fall which adds length and width to the Grand Canyon.

4 0
2 years ago
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The first sphincter encountered in the alimentary canal is the: The first sphincter encountered in the alimentary canal is the:
Arte-miy333 [17]

Answer:

The correct answer is: upper esophageal sphincter.

Explanation:

The alimentary canal is a very long tract responsible for the digestion of the food. It is composed of several organs with many different and important functions. The alimentary canal also has a few sphincters, which are muscular valves that open and close when needed for the food to pass or be retained.

The first sphincter is the upper esophageal sphincter. One particularity of this sphincter is that is one of the few sphincters in the body that opens and closes under our conscious control, which happens when we decide to swallow our food.

From the first to the last, the order of the sphincters in the gastrointestinal tract is: upper esophageal sphincter, lower esophageal sphincter or gastroesophageal sphincter, pyloric sphincter, ileocecal sphincter, and anus.

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2 years ago
When an earthquake occurs, energy radiates in all directions from its source , which is called the
AleksandrR [38]
Energy radiation is considered the term
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