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stiks02 [169]
3 years ago
9

how organisms could be harmed by high levels of salt from roadways, and expressing your opinion about whether it should continue

and why.
Biology
1 answer:
Vesnalui [34]3 years ago
3 0
Salt accumulation in the runoff when the snow melts can cause loss of water from the roots of plants leading to the death of the plants. Sufficient amounts of salt could cause fresh water organisms harm in the same manner.
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The ancient fish fossils were dated using C-14. If 1/16 the original amount of C-14 remains in the skeletons, approximately how
DedPeter [7]

c, 22,800 (4 half lifes, 1/2, 1/4, 1/8, 1/16)

3 0
3 years ago
A recessive trait is observed when an organism has how many recessive genetic factors
Mkey [24]
A recessive trait is observed when an organism has 2 recessive genetic factors.
5 0
4 years ago
A mistake occurs during mitosis of a muscle stem cell.How might this affect muscle tissue
pantera1 [17]

It could possibly cause a deformation or oddity in the muscle. It is unlikely that this would be visible but it could cause many issues in the tissue of said muscle.

6 0
3 years ago
Malik was out walking on a hot day and then decided to go inside an air conditioned
aev [14]

Answer:

Answer:

B. only chemoreceptors,

mechanoreceptors, thermoreceptors, and

nociceptors

Explanation:

Receptors are chemical structures, that

receive and transduce signals that may

be integrated into biological systems.

Receptors that can be found in the

mouth include: chemoreceptors,

mechanoreceptors, thermoreceptors, and

nociceptors.

Chemoreceptors

These are receptors that detects

chemical stimuli, either molecules or ions

dissolved in liquids. An example would

be our taste buds in the mouth, because

they respond to specific molecules or

ions in our ingested food.

Thermoreceptors responds to changes

in temperature. These receptors are

present in the oral cavity, skin and

hypothalamus.

Mechanoreceptors are receptors that

respond to distortion of the plasma

membrane that occurs due to touch,

pressure, vibration, stretch, stress or

strain

. They can be found in the mucosae of

hypothalamus.

Mechanoreceptors are receptors that

respond to distortion of the plasma

membrane that occurs due to touch,

pressure, vibration, stretch, stress or

strain

. They can be found in the mucosae of

ginviva (gum), cheek, tongue and soft and

hard palate.

Nociceptors are receptor responds

to painful stimuli. The purpose of

nociceptors is to inform the body of

injury, damage or threat of damage to

body tissues so that a response may be

made. They can be found in the tooth

pulp and within dentine cavity.

7 0
2 years ago
Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004
Simora [160]

Hardy Weinberg Equilibrium

Explanation:

  • Hardy Weinberg Equilibrium formula for allelic frequency is: p+q=1
  • Hardy Weinberg Equilibrium formula for genotypic frequency is: p^2+q^2+2pq=1
  • Here,p=frequency of dominant allele

                 q=frequency of recessive allele

                 p^2=frequency of dominant genotype

                 q^2=frequency of recessive genotype

                 2pq=frequency of heterozygous genotype

  • frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as:     q^2=0.0004

  • If q^2=0.0004 q will be 0.02;frequency of recessive allele will be 0.02
  • Using the formula p+q=1

                                       p+0.02=1\\p=1-0.02=0.98

  • hence,frequency of dominant allele will be 0.98
  • Frequency of dominant genotype will be p^2=(0.98)^2=0.9604
  • Frequency of heterozygous genotype will be 2pq=2*0.98*0.02=0.0392

7 0
4 years ago
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