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Amiraneli [1.4K]
3 years ago
14

The condition known as the av block is characterized by slow conduction of action potentials through the av node to the ventricl

es. which segment of the ecg would this be likely to affect and how would it affect ir?
Biology
1 answer:
Andre45 [30]3 years ago
6 0
PR segmen.......................
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Can you identify the steps in the scientific method that correspond to hunt's experiments?
Sphinxa [80]

The team of Hunt had designed an experiment to test the hypothesis of the effect of BPA on mice. The daily doses of BPA was administered into the female groups of mice for 3, 5 and 7 days and then the genetic abnormalities which occured during meiosis, chromosome division or egg formation were studied.

The steps followed in this experiment in order are as follows:

  • Observation- The mice eggs in plastic cages when washed using harsh soap showed problems during the cell division stage which caused genetic abnormalities.
  • Question- If the bisphenol A from the plastic affected mice in the damaged cages.
  • Hypothesis- If the frequency of the genetic abnormality was affected by the exposure to bisphenol A.
  • Prediction- The level of exposure of mice to bisphenol A was proportional to the increase in genetic abnormalities.
6 0
3 years ago
What family is potassium
kirza4 [7]

Answer:

s block

Explanation:

representative element family of metals

6 0
3 years ago
Imagine a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease. Neither par
Alexxx [7]

Answer:

C. "Because you have had one child with Tay-Sachs, you must each carry the allele. Any child you have has a 25% chance of having the disease

Explanation:

Tay-Sachs disease is an autosomal recessive disorder that means a child will acquire the phenotype or we can say disease only when both the alleles which cause disease are present in the child.

Here, in this condition neither parent has Tay-Sachs but they gave birth to a child who is suffering from the disease then it simply means that both the parents are carrier of this disease i.e. they both are heterozygous.

The cross and probability of healthy and diseased child is shown as under:

                          Mother        Father

Parents                    Tt               Tt

                              /        |          |     \

Off-springs         TT      Tt       Tt      tt

<u>Out of these 4 probable off-springs only 3 with genotype TT, Tt & Tt  will be healthy while the 1 with genotype tt will be diseased.</u><u> </u><u>So, the probability of diseased child is 1/4 which is 25%. </u>

Also, the birth of children is an independent event so if one child has already been born with this disease then it doesn't mean that the next 3 children will be healthy for sure i.e. birth of first child cannot influence the next child. In short we can also say that in the next birth, there is still 25% chance of the child being born with this disease because previous birth has nothing to do with next birth.

7 0
3 years ago
According to the body composition reference standards for adults, a fat level above ________ percent for men and ________ percen
n200080 [17]

Answer:

12-18 percent for men and 16-25 percent for women.

Explanation:

  • If there is an excessive amount of fat in their body which can lead to the impairment in the health of the person.
  • If there is excess fat in the body then the person is said to be over-fat.
  • The optimum percentage for men is 12-18 percent whereas the optimum percentage for women is 16-25 percent.
  • If the percentage increases more than this then it is said to be over-fat.
4 0
3 years ago
Light travels slowest in high density mediafaster in lower density media, and fastest in low density media . Which wave behavior
Len [333]

Answer:

C is the answer your looking for.

6 0
2 years ago
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