Please help, Using the rules of electricity, explain why peoples' hair stands up when a balloon is rubbed on their head.

Answers

Answer 1

Answer: There are positive and negative charges. Look at is this way a charge attracts a positive charge. On the other hand, when a charge is brought near a distributed charge, high is your hair for this, the positive charge attracts the negative charge so opposite charge concentration increases in the hair. So, when the same type of charge is in the hair, the hair stands up.

Answer 2

Answer:
Okay, so Your hair holds a positive or negative charge, then a balloon holds a charge different from you hair charge. So when a positive and a negative come together they make your hair rise

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Claude bernards first recognized

Answers

The correct answer is Claude Bernard first recognised stomata opening and closeing to mantain homeostasis.

What does a large-scale mutation affect?A.one or a few nucleotides in the DNA

B.sections in the chromosomes

C.the nucleotides with either a substitution, deletion or insertion

D.one or a few nucleotides in the RNA

Answers

The correct answer is A.

identify each of the cell structures indicated in figure 7-7 and explain its role in the cell. Be sure to indicate the letter that corresponds with each structure

Answers

A. Nucleus envelope.

Used in regulation of macromolecules like proteins and mRNA but permits water, ions and ATP into the nucleus.

B. Cytoplasm

This is an environment for other organelles and is location for many metabolic processes.

C. Endoplasmic reticulum

Used for transport of materials , proteins and lipid synthesis.

D. Nucleus

Acts as repository for genetic information, control center of the cell.

E. Nucleoplasm

provides environment for nucleotides, enzymes and chromosomes.

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For energy production through use of tricarboxylic acid cycle and electron transport chain among others.

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Which points should be included when the mother of an epileptic child is being counseled? select all that apply?

Answers

There are choices for this question namely:

1. The child should wear a medical alert bracelet.
2. The child should be given valproic acid with milk to reduce gastric irritation.
3. The parent should keep a journal of signs and symptoms before, during, and after seizures.
4. The child should discontinue the drug immediately and the parent should notify the primary healthcare provider if a rash develops.
5. The parent should understand that chewable forms of antiepileptic drugs are recommended for once-a-day administration.

The correct answers are 1, 3, and 4. Having the child to wear a medical alert bracelet leads to easy information to the surroundings and healthcare practitioners as this can be helpful in identifying emergency situations. Having a journal of signs and symptoms before, during, and after seizures are helpful especially in providing the patient's healthcare provider with accurate information. If a rash develops, the child should discontinue the drugs as this can be a sign of allergic reactions that may progress to anaphylaxis and ultimately anaphylactic shock. Valproic acid should not be mixed with milk as this won't reduce the irritation but will aggravate the mucosal irritation. Chewable forms of anti-epileptic drugs are not recommended for once a day administration.

Exchange of oxygen and carbon dioxide in the lungs occurs between the __________ and the alveoli.A. capillaries
B. bronchi
C. arteries
D. veins

Answers

Answer: Option A

Explanation:

The exchange of the oxygen and carbon dioxide takes place in the lungs. The oxygen from the lungs are exchanged by the carbon dioxide between the alveoli and capillaries.

The oxygen from the lungs are carried away to various cells of the body and the carbon dioxide from the body cells are carried to the lungs for the process of exchange of gases.

capillaries.

Exchange of oxygen and carbon dioxide in the lungs occurs between the capillaries and the alveoli.

Which statement does not describe a human cell?a) has a nucleus with thousands of different genes
b) has specific active genes in response to environment
c) transcribes bacterial and human DNA
d) transcribes certain genes at certain times

***please provide explanation if possible

Answers

C - it doesn't transcribe bacterial DNA, simply because it's a human cell and not a bacteria cell

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