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Aleksandr [31]
3 years ago
12

Explain why a hypothesis could still be correct even though an expirament says the hypothesis is wrong

Biology
2 answers:
Zarrin [17]3 years ago
3 0

Because you might have just done something different with the experiment and messed up someway during the test

galina1969 [7]3 years ago
3 0

A hypothesis is an educated guess. Therefore if the experiment says your hypothesis is wrong it could be right because it was just a guess. not a set answer.

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Ringworm is caused by toxins produced by dermatophytes. mycosis that has invaded the blood stream. dermatophytes growing in the
Nonamiya [84]

Answer: the correct answer is dermatophytes growing in the outer dead tissue layers of the skin (epidermis).

Explanation:

Ringworm isn't a worrm but it is an infection caused by moldlike fungi that live in the dead tissue of your skin, hair or nails.

8 0
3 years ago
Why would it be expected that a swordfish would exhibit higher methyl mercury levels than a tilapia? (site 2)
kirill [66]

Answer:

Answer is explained below;

Explanation:

Mercury is a liquid metal that is released into the environment by both natural processes such as volcanic activity, weathering of rocks, etc and human activities such as waste materials from factories. The mercury that reaches the ocean and other water sources is converted into methylmercury by bacteria. Methylmercury is a neurotoxin that interferes with the nervous system and is easily absorbed by the human body.

The methylmercury is taken up by planktons. Small fishes consume large quantities of plankton. Tilapia is a small, short-lived freshwater fish. The methylmercury level in tilapia is lower than that of other fish. When large, long-living predatory fishes such as tuna, shark, king mackerel, swordfish, etc consume many smaller fish with low mercury levels, this causes accumulation of methylmercury at extremely high levels in their tissues over time i.e., the amount of mercury in such bigger fish biomagnifies.  

So large, long-lived predators like swordfish and shark often have the highest methyl mercury levels than a small, short-lived tilapia.

3 0
2 years ago
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The theories on the origin and expansion of the universe have changed from time to time. Which of these best explains why the th
laila [671]
<span>new scientific investigations lead to new theories</span>
5 0
2 years ago
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Name one similarity and one difference between the morphology of a brachiopod and a bivalve
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Both of them have a shell with a living organisms with the valves and they both are form somewhere different
8 0
3 years ago
Aniridia, a type of blindness, occurs in humans and is due to a dominant allele, A. Normal vision is due to the allele, a. Migra
ddd [48]

Answer:

1. What was the genetics of the man's father for aniridia? his genotype for the trait is Aa

2. Did the woman’s mother suffer from migraines? Yes, the women  inherited from her the dominant allele for migraines, M

3. What is the probability of this couple producing a child who is normal for both traits? 1/2 aamm

4. What is the probability of this couple producing a child who is afflicted by both traits? 0% of the progeny will be affected by both traits at the same time

5. What is the probability that a child of this couple will have normal vision and migraines? 1/2 aaMm

Explanation:

<u>Available data:</u>

  • Aniridia is due to a dominant allele, A.
  • Normal vision is due to the allele, a.
  • Migraine headaches are due to the dominant allele, M.
  • Normal headaches are due to the allele, m.

A man with normal vision and without migraines marries a woman with normal vision and migraines.

  • The genotype of the Man with normal vision and without migraines is  aamm
  • The genotype of the woman with normal vision and migraines is aaM-

The man's father had aniridia. This means that his genotype for the trait is Aa. We know that his son is homozygous for the recessive trait and that he must have inherited one recessive allele from the mother and the other recessive allele from his father. So, the man´s father must be heterozygous for the trait. If he was homozygous, the son would be heterozygous and would express aniridia.

The women's father had normal headaches but never a migraine. This means that his genotype is mm, recessive homozygous for the trait, which tells us that the women´s mother inherited her the dominant allele for migraines, and her father inherited her the recessive allele for the trait.

Cross:

Parental) aamm    x    aaMm

Gametes) am  am  am  am

                aM  aM  am  am

Punnet square)   aM       aM       am       am

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

                  am   aaMm  aaMm  aamm  aamm

F1) 8/16=1/2 of the progeny will have normal vision and migraines, aaMm

     8/16=1/2 of the progeny will have normal vision and will not have migraines, aamm

1. What was the genetics of the man's father for aniridia? his genotype for the trait is Aa

2. Did the woman’s mother suffer from migraines? Yes, the women  inherited from her the dominant allele for migraines, M

3. What is the probability of this couple producing a child who is normal for both traits? 1/2 aamm

4. What is the probability of this couple producing a child who is afflicted by both traits? 0% of the progeny will be affected by both traits at the same time

5. What is the probability that a child of this couple will have normal vision and migraines? 1/2 aaMm

8 0
3 years ago
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