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3 years ago

The speed of neurotransmission in the frontal lobe increases during adolescence due to the growth of

Biology

2 answers:

ollegr [7]3 years ago

8 0

Answer:

The speed of neurotransmission in the frontal lobe increases during adolescence due to the growth of Myelin

Explanation:

Myelin is a fatty material, rich in lipids, which coats nerve cell axons to separate them and increases the rate of data transmission along the axon. The myelinated nerve cell axon can be associated with an electrical wire, i.e, axon covered by insulating material called myelin. Due to this action people will be more active, enthusiastic as the transmission of signals are very fast.

In other words, Myelin can significantly increase the speed of neurotransmission as it separates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. The growth in myelin results in the increase of speed of transmission of electrical impulse along the nerve cell or the axon

Marizza181 [45]3 years ago

4 0

Answer: Myelin

Explanation:

The speed of the neurotransmission increases as we grow. The behavior of the teenager is quite different from the behavior of the adolescents.

They are more active, heroic and wants to take risk. This is because their brains are not completely developed till they reach the age of 25.

As they grow and reach the late 20s the white mater in the brain increases as the frontal lobe is the last part of the brain development.

Due to the development of the myelin in the frontal lobe the transmission of the signal increases at adolescence.

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ExtremeBDS [4]

Answer:

What would happen if gametes had a full set of DNA? The number of DNA strands would double with each generation. One gamete cell divides into four cells, but each resulting cell has half the amount of DNA as compared to the original cell. Body cell mitosis

Explanation:

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3 years ago

Single-celled or unicellular fungi are: molds monolyathids protoplasm yeasts

Tju [1.3M]

The answer is yeasts.

Fungi is the kingdom of Eukaryota domain and includes unicellular organisms and multicellular organisms. Yeasts are unicellular fungi. But, some species have an ability to develop some kind of multicellular characteristics such as pseudohyphae that forms by connecting budding cells.

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3 years ago

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Within a given species, which two types of cells have the equivalent amounts of dna?

kiruha [24]

The original question has a set of choices. This is within the context of cell division. The choices are:

A. A cell in G1 of interphase and a cell in G2 of interphase
B. A cell in G1 of interphase and a cell immediately after the completion of meiosis II
C. A cell in G1 of interphase and a cell in metaphase II of meiosis
D. A cell in G2 of interphase and a cell in metaphase II of meiosis
E. None of the above.

The correct answer is C. A cell in G1 is diploid and the cell in meiosis II is haploid but the amount of DNA still equivalent as each chromosome in the haploid cell consists of two chromatids. G2 cells already had been through the S phase therefore the genetic material is already doubled. A cell immediately after meiosis II has half the genetic material.

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3 years ago

Explain about Photosynthesis . ?

levacccp [35]

Answer:

Plants and other creatures utilize photosynthesis to convert light energy into chemical energy, which is then released to power the organism's metabolic processes through cellular respiration.

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3 years ago

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There are two species of freshwater shrimp that are introduced to a pond. The first species, Caridina cantonensis, is brightly c

Marina86 [1]

Explanation:

Natural selection is the mechanism that is responsible for the evolution of organisms.

In the given case, the Freshwater shrimp has been introduced to a pond in which the two species with variations are introduced.

The C. cantonensis is brighter in color whereas the C. multidentata is mottled drab in color. The predator fish can feed easily on the species which is brighter therefore C. cantonensis is more susceptible. The mottled drab species is not easily predated by the species.

The 30 % offsprings of C. cantonensis can survive till the reproductive age whereas 75% of C. multidentata. This shows that natural selection has acted on the color of the shrimp species selected against the predator fish species.

The species with mottled drab color is the result of the differential reproductive rate.

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3 years ago