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Ivanshal [37]
3 years ago
8

PLZ HELP ASAP!!!!!!! Really need help. ONLY COMPLETE ANSWERS!

Health
1 answer:
saw5 [17]3 years ago
4 0
One drug that is important for 7th graders to know about in my opinion, would be marijuana since it is the most easiest to obtain. It is commonly sold on the streets and easy to get away with. Marijuana damages the hippocampus. The hippocampus is the part of the brain that is responsible for controlling emotions, memory, and the automatic nervous system. Long-term effects would be bronchitis, pneumonia, respiratory problems, and problems with the kidneys and liver. People may choose to smoke marijuana to help with their issues or as a form of relaxation. Many claim it helps with anxiety and depression. Some choose not to participate in drug activities so they can have a healthy body. The title of my presentation would be informational yet catching, I may title it something like “The Truth Behind Drugs”, “What Does Marijuana Actually Do”, “Why You Should Avoid Highs”.

Hope this helps.
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6. Is it healthy to restrict processed foods? Why or why not?
AleksAgata [21]
Yes it is healthy to restrict processed foods. If you eat a lot of highly processed foods, you risk getting too much sodium, added sugars and unhealthy fats.
6 0
2 years ago
Nucleosides are polymers that have just a base and a .
ra1l [238]

Answer:

Chemically altered nucleosides derived from canonical ribo-or deoxyribonucleoside-derivatives of adenosine, cytosine, guanosine, and uridine or thymidine are found in all types of nucleic acids, DNA and RNA. They are particularly abundant in noncoding RNAs, such as transfer RNAs and ribosomal RNA of higher organisms. By increasing the structural diversity of nucleic acids, modified nucleosides play important roles in gene expression and in regulating many aspects of RNA functions. They also contribute to nucleic acid stability and to protection of genetic materials against virus aggression. In this chapter we present a historical overview of the discovery, occurrence, and diversity of the many naturally occurring modified nucleosides that are present in both DNA and RNA of diverse organisms. We also briefly describe the different enzymes that accomplish these nucleic acid ‘decorations’. More information about the structure, function, biosynthesis and evolutionary aspects of selected modified nucleosides in DNA and RNA and their corresponding modification enzymes can be found elsewhere in this volume.

Explanation:

hope this helps!

5 0
3 years ago
Here are some riddles whoever figures it out FIRST WILL GET BRAINLIEST.
Iteru [2.4K]

Answer:

Maybe this one...

4 0
3 years ago
Read 2 more answers
How does exercise help us be more enthusiastic in life
IrinaVladis [17]

Answer: exercise secretes a hormone called endorphins which makes you happy

5 0
3 years ago
A person’s blood volume (and blood pressure) can fluctuate based on intake of sodium and fluid, but is carefully regulated via s
lions [1.4K]

Answer:

The distribution of water in one or another compartment is due to forces that drive the movement of the liquid. These forces depend on the concentration of solutes (particles, molecules and ions dissolved in the water of a compartment) present in the compartments because the water moves to the compartment where the concentration of solutes is higher. This force that determines the movement of water is the osmotic pressure.

In organisms the most important electrolytes from the point of view of their concentration, therefore, of their osmotic effect, are the sodium and potassium ions. But they predominate in different compartments. Potassium is the most important electrolyte in the cell compartment while sodium is in the extracellular compartment. The concentration of these cations in the compartments indicated is expressed as a characteristic called osmolarity (number of osmoles per liter).

It follows from the foregoing that the control of volume homeostasis depends on the control of osmolarity.

The regulation of volume homeostasis then allows a normal circulatory and blood function condition that is vital for normal cell functioning. If a situation of hypovolemia (decrease in blood volume) occurs due to dehydration or blood loss, a series of physiological and behavioral mechanisms appear to correct the imbalance. Hypovolemia is detected by baroreceptors present in the sasnguine vessels (aotic arch, carotid sinus, afferent renal arterioles). The first to respond are those of the aortic arch and the carotid sinus which send signals to the nucleus of the solitary tract, located in the brainstem. Signals from this nucleus reach the hypothalamus and act on the supraoptic and paraventricular nuclei. These nuclei, which produce the hormone arginine-vasopressin (or vasopressin or antidiuretic hormone), increases its release. This hormone acts on the kidney causing an increase in water reabsorption, resulting in decreased urine flow.

Normal volemia is thirst. Hypovolemia not only represents a decrease in plasma volume but also an increase in the osmolarity of the extracellular compartment. A change in this parameter is a very efficient signal about thirst behavior, described as an intense motivation to seek, obtain and consume water. An increase in plasma osmolarity between 1-4% induces thirst behavior. The increase in osmolarity seems to act on specific cells sensitive to this type of stimuli, the osmorreceptors, which have been located in the vascular organ of the terminal lamina, in the anterior hypothalamus. Other hyperosmolarity sensitive neurons are located in the subfornical organ, in the medial preoptic nucleus and also in the magnocellular cells.

But also hypovolemia stimulates the secretion of renin by the kidneys. This enzyme causes the formation in the blood plasma of a substance, angiotensin I, which is transformable in another molecule, angiotensin II. This is a peptide that acts as a potent vasoconstrictor, but at the same time stimulates the secretion of aldosterone, a hormone from the adrenal cortex that also acts on the kidney. In this organ it causes the reabsorption of Na +, which passes to the plasma where it acts as a water retention factor, contributing, therefore, to the restoration and / or conservation of plasma volume.

In the case of hyperosmolarity, another strategy that the body uses in addition to drinking and water retention, is to eliminate excess Na +. This is achieved through the participation of other hormones such as atrial natriuretic factor, which is synthesized by the heart at the atrial level. This peptide is released by the mechanical stimulus that means the atrial distention and the actions on the kidney stimulating the loss of sodium chloride.

3 0
3 years ago
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