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kipiarov [429]
3 years ago
7

You are comparing a reaction that produces a chemical change and one that produces a physical change. What evidence could you us

e to dertimine which type of change is
occurring?
Biology
1 answer:
Zina [86]3 years ago
8 0

Answer:

To understand the physical change and chemical change, one needs to know what is physical properties and what is the chemical properties of a substance.

Physical property is characteristic or trait of a substance that can be observed without converting the substance to a new substance. If there is any type of change in these physical properties like changing the appearance or form of matter and does not make a new substance, takes place it is called physical change.

A chemical change is a change in the matter of a substance that creates one or more new substances. This type of change includes the formation, color, of a precipitate, change in texture, and many other changes.

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For each of the following statements, indicate
stepan [7]

The plants that were allowed to self pollinate were the F1 plants.

The plants that are true breeding are P generation plants.

The plants where there were 3times as many tall plants as short plants are in F2 generation.

<h3><u>Explanation:</u></h3>

This question is based on the Mendel’s Experiment. Sir Gregor Johann Mendel was the father of genetics who experimented on garden pea plants <em>Pisum</em> <em>sativum</em> to see whether the characters got mixed or not and to know the real cause behind different traits of same character in plants.

He took the pure homozygous tall and short plants separately which he called as parental generation or P generation. These plants were homozygous, hence pure breeding.

As these plants were crossed between themselves, then the F1 generation showed all tall plants. This is because of the heterozygous plants which showed character of dominant trait. These plants were allowed to self pollinate.

As a result of self pollination of the F1 plants, the F2 plants were 75% tall in number whereas the other 25% short, which gave the phenotypic ratio of 3:1.

4 0
3 years ago
Read 2 more answers
Protein synthesis can can be incresed by
noname [10]

Answer:

Multiple sources of protein promote protein synthesis after exercise, but only those with essential amino acids elevate synthesis. ... Ten grams of essential amino acids or twenty-five grams of a complete protein are sufficient to maximally stimulate protein synthesis.

Explanation:

3 0
3 years ago
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which part of the brain plays a key role in forming and storing the implicit memories created by classical conditioning?
inysia [295]

The part of the brain which plays a key role in forming and storing the implicit memories created by classical conditioning is the Cerebellum.

As well known, the central nervous system (CNS) is made up of the brain and spinal cord. The peripheral nervous system (PNS) on the other hand is composed of spinal nerves that branch from the spinal cord.

The brain is subdivided into 3 parts:

  • The Cerebrum which is the largest part of the brain and is composed of right and left hemispheres and is responsible for performing higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement.

  • The Cerebellum which is located under the cerebrum. Its function is to coordinate muscle movements, maintain posture, and balance. An additional function of the cerebellum is the formation and storage of memories created by classical conditioning.

  • The Brainstem which acts as a relay means connecting the cerebrum and cerebellum to the spinal cord. It is responsible for many automatic functions such as breathing, heart rate, body temperature, wake and sleep cycles, digestion, sneezing, coughing, vomiting, and swallowing.

Ultimately, The part of the brain which plays a key role in forming and storing the implicit memories created by classical conditioning is the Cerebellum.

Read more:

brainly.com/question/17174315

7 0
3 years ago
Part C: Specify Your Requirements
mariarad [96]

Answer:d) Construct a 95 percent confidence interval on the mean shaft diameter. ... troublesome cosmetic defect, flow lines, in the finished housing. ... (c) Based on your answer to part (b) conduct another analysis of the failure time data and draw ... Three different washing solutions are being compared to study their effectiveness ...

Explanation:

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3 years ago
Why were chemical disinfectants once commonly compared with phenol?
kotykmax [81]

Answer:

The chemical components, which are utilized to eradicate or eliminate pathogenic microbes are known as chemical disinfectants. These comprise sodium hypochlorite, chlorine, bromine, hydrogen peroxide, chloramines, and others.  

Traditionally, the chemical disinfectants are usually compared with phenol as phenol was the first or the foremost used chemical agent for the purpose.  

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3 years ago
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