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anzhelika [568]
3 years ago
5

Which of the following is a Monotreme? kangaroo koala bandicoot platypus

Biology
1 answer:
Otrada [13]3 years ago
8 0

Answer:

platypus

Explanation:

  • Monotremes are a subgroup of mammals that are known for their ability to lay eggs rather than giving birth to young ones which are a characteristic feature of all the groups of mammals and hence, monotremes are famously known as <em>egg-laying mammals.</em>
  • They are more commonly formed in Australia and New Guinea and some regions of South America. 
  • Today, there are only 4 species of echidna and platypus that constitutes the existing monotremes. 
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What type of communication coordinates actions between neighboring cells?
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Answer: A. Chemical signal

Explanation:

Chemical signal is the type of communication which coordinates actions between neighboring cells .

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C.  The drum will work on Earth and in outer space. The drum will not work under the water.

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You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the In
Licemer1 [7]

Answer:

<em>C: After 1 hour, the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3</em>

Explanation:

The degree of acidity or alkalinity/basicity of a substance is its pH. The value of pH ranges from 1 to 14 with the former being extreme acidity and the latter being extreme alkalinity while pH 7 is considered neutral.

Hence, any pH below 7 is considered acidic and above 7 is considered alkaline.

Reactions involving equal volumes of an acid and a base can end in acidic, alkaline or neutral pH depending on the strength of the acid/base involved;

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If substance A and B reacts with equal volume of the same acid under the same condition and the end result of A is a solution with pH of 9.2 and that of B is a pH of 8.3, it simply means substance A is a stronger base than substance B.

<em>Hence, the only outcome that supports the hypothesis that a tablet of PEPCID AC can neutralize more stomach acid than a tablet of Alka-Seltzer is that the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3 after being subjected to the same condition.</em>

If an indigestion is due to excess stomach acid, the only way to reduce the acidity is to consume a substance that will decrease the degree of acidity in the stomach. This means that the patient will need to consume something that is alkaline in order to increase the pH.

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