![subject](/tpl/images/cats/biologiya.png)
Biology, 12.07.2019 22:00 danielahchf
Acetylcholine (ach) affects muscle action, learning, and memory. endorphins are natural opiates released in response to pain and exercise. drugs and other chemicals affect brain chemistry at synapses. agonists increase a neurotransmitter's action, and may do so in various ways. antagonists decrease a neurotransmitter's action by blocking production or release.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 21:30
Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:30
Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:50
The fascicles of the deltoid are ; the fascicles of the pectoralis parallel; bipennate fusiform; unipennate multipennate; triangular bipennate; fusiform
Answers: 3
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
Acetylcholine (ach) affects muscle action, learning, and memory. endorphins are natural opiates rele...
Questions
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 00:31
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 00:31
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2020 00:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.01.2020 00:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2020 00:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 01:31
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 01:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 01:31
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 01:31
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 01:31