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Zigmanuir [339]
3 years ago
12

What kind of Change makes iron to rust

Biology
1 answer:
BARSIC [14]3 years ago
5 0
Chemical change because a chemical change is any change that results in the formation of new chemical substances.
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Based on the direction of the blood flow, through what type of blood vessel is blood flowing in the diagram? #19
kifflom [539]

Answer:

D) a vein

Explanation:

5 0
3 years ago
A specific pitch corresponds to a specific ______.
azamat
The answer to this question would be frequency.

The pitch of a sound makes is directly related to the frequency of the vibration. For every octave, the number of frequency will be increased 2 times. The frequency is influenced by various things. Changing the length of the instrument is the easiest method to change the frequency.
3 0
3 years ago
The body produces antibodies complementary to foreign antigens. The process by which the body comes up with the correct antibodi
lys-0071 [83]

The question is incomplete as it does not have the options which are:

  • going to a tailor and having a suit made to fit you
  • selecting a lottery prize-winner by means of a random drawing
  • going to a shoe store and trying on shoes until you find a pair that fits
  • ordering the lunch special at a restaurant without looking at the menu
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Answer:

Going to a shoe store and trying on shoes until you find a pair that fits

Explanation:

Antibodies are the immunoglobulin molecules secreted by the B cells which help the body providing the immunity as they interact with the antigen and help immune system to produce a response.

The variety of the B cells are produced by the body in response to different antigens which produce different type of antibodies. This interaction of antigen and antibodies is known as the complementation and just appear like if you are going to a shop to buys a pair of shoes and tries different shoes  to find the best shoe of best size.

Thus, the selected option is correct.

4 0
3 years ago
Which statement accurately describes the atoms of a specific element.
Sveta_85 [38]
A zinc, Zn, atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus. hope this helped :)
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Mutation is an important mechanism for evolutionary change. Which type of mutations contribute to evolution?
Aneli [31]
<span>Both somatic and germinal mutations are contributors of evolution. Somatic mutations occur within tissues of individuals that give the said individual differing traits and characteristics. Germinal mutations occur in reproductive cells that can be passed on to offspring, altering their traits and characteristics.</span>
7 0
3 years ago
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