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Zina [86]
3 years ago
6

What is the function of the structure labeled nucleus

Biology
1 answer:
Tju [1.3M]3 years ago
3 0

The nucleus is found in eukaryotic cells. The nucleus organizes DNA molecules, along with some protein, to create chromosomes.

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When body temperature increases, thermoreceptors are stimulated and send nerve signals to the CNS. The CNS sends motor signals t
uranmaximum [27]

Answer:

d. visceral.

Explanation:

The visceral reflex is one that happens autonomously in the body, aiming to maintain the balance of the body through quick responses to some specific impulses. An example of a visceral reflex is the reduction in body temperature with the release of sweat from the sweat glands.

The visceral reflexes are controlled by the autonomic nervous system, using the sympathetic and parasympathetic nervous system.

3 0
3 years ago
What are the three things that can come out of a volcano during a volcanic eruption?​
vredina [299]

Answer:

It will produce 3 types of material

Gas, lava, teprah

Explanation:

Another 3 is

Hot rock, lava and ash

4 0
2 years ago
Degeneration of the dopamine-releasing neurons of the ________ is the ultimate cause of Parkinson's disease. Degeneration of the
slavikrds [6]

Answer:

a. substantia nigra

b. substantia nigra (it is repeated)

Explanation:

Parkinson's disease is a neurodegenerative disease that is caused by the death of neurons that release the neurotransmitter dopamine in the <u>substantia nigra</u>, or locus niger, -a region of the brain that regulates brain circuits that give the 'orders' to initiate voluntary movements- .

The lack of this neurotransmitter leads to the occurrence of the main symptoms suffered by patients: decreased movements, muscle stiffness, postural instability and tremor. These failures are generated by the abnormal way in which neurons work in the absence of dopamine through a mechanism that is not known in depth.

It is the second most frequent neurodegenerative disease, after Alzheimer's disease, with a prevalence of 2% in people over 65 years. The characteristic symptoms of stiffness, bradykinesia and tremor are associated with losses of neurons in the substantia nigra and dopamine depletion in the striatum. There are large cytoplasmic inclusions, called Lewy bodies, which are the pathological mark of the disease and appear predominantly in neurons that contain melanin of the nigra substance. Genetic studies in a subgroup of families with Parkinson's disease with autosomal dominant inheritance found a locus on chromosome 4q-21 23 and a mutation in the gene that encodes a synaptic protein, α-synuclein.

7 0
3 years ago
What do you think is meant by the statement, "DNA unites all organisms"
NARA [144]

Answer:

Easy. All life on this planet are products of DNA. It is what we all have in common.

8 0
2 years ago
Describe 3 ways the land/terrain change as we move from Charlotte NC to the coastal plains of North Carolina
Katarina [22]

Answer:

Hilly towards flat.

Higher elevation toward lower elevation.

Clayey to sandy type of soil.

Explanation:

The land of Charlotte NC is hilly whereas coastal plains of North Carolina is flat. Charlotte NC is located at a high elevation while on the other hand, the coastal plains of North Carolina are located at the sea and at lower height. The soil type of Charlotte NC is clay and silt whereas the soil type of coastal plains of North Carolina is sandy due to the presence of sea.

3 0
3 years ago
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