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rodikova [14]
3 years ago
14

A patient complains of difficulty passing stools, which are small, hard lumps. according to the bristol stool form scale, what w

ould be the classification of these stools?\
Biology
1 answer:
Elenna [48]3 years ago
8 0
Type 1 stools are detached, hard lumps that be similar to nuts that are tough to pass. Type 3 stools are like a sausage, but with pops on the surface. Type 5 stools are mushy blobs with clear-cut ends that are passed effortlessly. Type 6 stools are cottony pieces with raggedy edges.
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You want to study the effect of agriculture run-off on the rate of antibiotic resistant bacteria in ponds. You gather samples fr
Yuliya22 [10]

Complete question:

You want to study the effect of agriculture run-off on the rate of antibiotic-resistant bacteria in ponds. You gather samples from ponds surrounded by high-density livestock areas and from ponds at least ten miles from agriculture activities. You grow the bacteria on plates and test how resistant they are to antibiotics. Based on this experiment, the proximity of the pond to agriculture would be best categorized as what?

  1. the control group
  2. the independent variable
  3. the dependent variable
  4. the hypothesis

Answer:

2. the independent variable

Explanation:

During an experiment, data from an experimental group is compared with the data from a control group. Both groups are selected from the same pool or population, so they are identical in all aspects except for the independent variables.  

The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, from the results that might be a consequence of other factors. The control group does not receive any treatments. It is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.  

The <u>experimental group</u> is the one that receives the experimental procedure or treatment. The researcher voluntarily changes the independent variables in the experimental group to observe how they affect the group under study. These variables are kept constant in the control group, not influencing the results, while the experimental group receives the treatment. There can be several experimental groups.

Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that<u> changes</u> or is <u>controlled</u> and <u>modified</u> in the experiment to <u>analyze how another variable responds to it</u>. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.

Dependent variable: Refers to the variable that depends and reacts to any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. This change might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y.

The hypothesis is a conjecture. The researcher hypothesizes in order to predict what is going on or what is expected to occur. A hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.    

----------------------------------------------------------------------------------------------------------

The proximity of the pond to agriculture might be considered as an <em>independent variable</em>.

The researcher chooses ponds according to their distance from the crops. In the exposed example, the researcher chose a pond is surrounded by high-density livestock areas and another one at least ten miles away.

The magnitude of run-off might depend on how far the pond is from the crops.

4 0
3 years ago
All parts of the plant need food water and nutrients these subtances get to all parts of the plant thorugh the tissues in the pl
kolezko [41]
Vascular tissues.
Vascular is from vessels that literally carry things all over the organism.
5 0
3 years ago
If we removed the producers from this food web, how would it affect the balance of the ecosystem?
AlladinOne [14]

Answer:

If we removed the producers from this food web, how would it affect the balance of the ecosystem? A. There would be an increase in consumers and decomposers. ... There would be a decrease in primary consumers and an increase in secondary consumers.

7 0
3 years ago
Read 2 more answers
Muscles and bones in your arms and legs work like which simple machine?
Nikitich [7]
The muscle pulling on a bone often works like a type of simple machine called a lever. Most of the bones of the limbs (arms & legs) act as levers for the body. I hope that this is the answer that you were looking for and it has helped you.
3 0
3 years ago
Mrna,amino acids,type of mutation
Leya [2.2K]

Answer:

mRNA: 3' AUG-AAU-GCU-GCC-GGU-GA-5'

amino acids : methionine, asparagine, alanine, arginine, proline

type of mutation: deletion, missense

Explanation:

The mRNA sequence is complementary to the DNA sequence. A always pairs with T, C always pairs with G. Except this is an RNA sequence not a DNA sequence, so T is replaced with U.

The mRNA sequence is translated into an amino acid sequence based on the triplet code. The triplet code for this sequence is shown in the attached picture. Each triplet signifies a specific amino acid. The codon can be identified from the table and placed in sequence. We can see that the new DNA strand has caused a new amino acid sequence. It has also left us with an incomplete sequence, as GA cannot signify an amino acid.

The type of mutation is a single base deletion. We can see that the base C is missing from the 9th amino acid in the original strand. As you can see, this has an ongoing affect on all the bases in the rest of the sequence, as it changes the way the sequence is organised into codons. This results in a missense mutation.

3 0
3 years ago
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