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vladimir1956 [14]
3 years ago
14

The first major wave of morphine addiction occurred during the ______.

Biology
1 answer:
stich3 [128]3 years ago
6 0
Answer is - american civil war
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Please match these correctly
Lerok [7]
<span>1.keeps tooth alive 
</span><span>pulp
2.surface of teeth 
enamel
3.tube carrying food to stomach 
esophagus
4.last major organ in digestive system 
large intestine
5.digestive organ located above waist, close to ribs 
stomach
6.first stage of digestion takes place here 
mouth
7.regular squeezing movements 
peristatiss
8.blood vessel leading from heart 
artery
9. windpipe 
trachea</span>
6 0
3 years ago
Active transport and facilitied diffusion relation
statuscvo [17]

Answer:

Both facilitated diffusion and active transport are selective processes. Only selective molecules are allowed to cross the membrane. They utilize carrier proteins to move across the membrane.

Explanation:

Diffusion is the process by which molecules move across a membrane respective of the concentration gradient. The plasma membrane is a <em>selectively permeable membrane</em> which allows specific molecules to move across the concentration gradient.  

Molecules migrate from a region of higher concentration to a lower concentration in case of diffusion. It can be classified into simple diffusion and facilitated diffusion. These are examples of <em>passive transport</em>.

In facilitated diffusion molecules move across the concentration gradient with the help of <em>carrier proteins or channel proteins</em>. The carrier proteins bind to the molecule which has to be transported and change conformation to allow it to cross the membrane. For example glucose molecule is carried across through <em>GLUT transporter</em>. <em>Channel proteins</em> open a channel inside the membrane and molecules get transported across the gradient.

Active transport carries molecules against the concentration gradient with the assist of energy. ATP hydrolysis is utilized to generate energy. As a result of active transport, the molecules are aggregated on one side of the membrane.

7 0
3 years ago
Dylan is a psychiatrist who feels strongly that psychological disorders are caused by chemical imbalances in the brain or other
asambeis [7]
A psychological disorder or a mental disorder is compose of behavioral and psychological symptoms impacting on areas of one's life causing further problems. When a psychiatrist like Dylan works on the causes of the disorder such as chemical imbalances, he is now working on the Biological perspective of the treatment.
5 0
3 years ago
Read 2 more answers
An igneous rock is found on the ground and has no identifiable crystals. What is the most likely origin of this rock?molten mate
quester [9]

The answer would be: <u>Molten material that cooled quickly.</u>


Igneous rocks are formed by the cooling of molten material. So we can cross out the last two choices. The rock has no identifiable crystals so it is most likely an Extrusive igneous rock. They form on the surface where they cool quickly.


Those that form underground are called intrusive rocks. They cool slowly allowing enough time for crystal formation.

4 0
3 years ago
Read 2 more answers
Which of the following is the best source of
Vera_Pavlovna [14]

Answer:

Scientific journal B:

Explanation:

HOPE IT'LL HELPS!!

7 0
3 years ago
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