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Eva8 [605]
3 years ago
10

Identify some of the countries that have not signed the Ramsar Convention (an agreement in Iran to discuss the threat to the wor

ld's wetlands. almost 170 nations joined.) Can you suggest why they have not signed?​
Biology
1 answer:
charle [14.2K]3 years ago
4 0

Answer:

Explain how Sikican adapt his lifestyle to spend more time on his studies

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Many countries around the world are spraying aerosols (condensation nuclei) into the atmosphere. What effect will this have, bas
Ket [755]

More condensation nuclei, more cloud formation and precipitation are the results of spraying aerosols into the atmosphere.

<h3>What are the effects of aerosols on clouds?</h3>

Aerosols greatly influence clouds formation and its growth. Water droplets gather readily around particles which provides a particle-rich atmosphere that promotes cloud formation.

So we can conclude that more condensation nuclei, more cloud formation and precipitation are the results of spraying aerosols into the atmosphere.

Learn more about cloud here: brainly.com/question/19057393

#SPJ1

5 0
3 years ago
Identify the way that leptin produced by fat cells of adipose tissue in the abdomen can send a signal to the neuroendocrine cell
Luda [366]

Answer:

Leptin is a protein hormone composed of 167 amino acids of the cytosine family, it is synthesized mainly by white adipose tissue. The leptin receptor is related to that of receptors for cytosines (since it uses Janus or JAK type kinases and STAT-3 proteins as intracellular mediators of transcription pathway), it is predominantly found in the hypothalamus (particularly in the arcuate nucleus and to a lesser extent in the nuclei dorsomedial and ventromedial), hippocampus and cerebellum. There is evidence that leptin acts at the level of the arcuate nucleus, preventing the formation of NPY.

Explanation:

Leptin is produced exclusively in adipose tissue cells in a wide variety of species, including humans, and its concentration is higher in overweight than in lean individuals. The biological actions of leptin can be classified into two groups, those that are exerted in the tissues of the central nervous system, mainly the hypothalamus, and those that are carried out on the peripheral tissues. The former regulate body weight downward, decrease food intake, increase basal energy expenditure and modify some neuroendocrine functions such as reproduction, while the latter have effects on proliferation, differentiation and metabolism of peripheral tissues. The leptin that reaches the hypothalamus, in addition, inhibits protein synthesis and the secretion of neurons producing NPY / AgRP of the arcuate nucleus and stimulates the synthesis and secretion of those containing POMC. NPY (neuropeptide Y) is produced in the hypothalamic arcuate nucleus. This neurotransmitter arrives through the projections of the neurons of said nucleus to the paraventricular nucleus, which is the area where it is released. There are several studies that have shown that an increase in NPY leads to an increase in the sensation of hunger and thus to hyperphagia and obesity. Leptin acts at the level of the arcuate nucleus, preventing the formation of NPY. The leptin receptor lacks enzymatic activity in its intracellular domain. Instead, it is linked to members of the janus kinase family, which belong to a class of tyrosine kinases. The binding of the ligand activates the Jak kinase and leads to the phosphorylation of certain cytoplasmic proteins. Within these proteins there is a class of cytoplasmic transcription factors called signal transducers and activators of transcription (STAT).

5 0
3 years ago
DNA replication results in two DNA molecules, _________________________. Thus replication is _________________________.
kvasek [131]

Answer:

consisting of one new and one old chain of nucleotides.

is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.

5 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST
Gelneren [198K]

Answer:

B or C i think

Explanation:

because Eons are broken into eras and then into periods.  Its not A tho

6 0
3 years ago
Read 2 more answers
. Technician A says that a new replacement part is always good. Technician B says that sometimes recent repair work will be the
OverLord2011 [107]

Answer:

Both technician are correct.

Explanation:

According to the statement, the opinion of both technicians is going in the same direction which is, NOT to use the older parts for the sake of repairing a machine. The usage of old parts would temporarily fix the problem but it has the potential of causing bigger damages in the long run.

8 0
3 years ago
Read 2 more answers
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