1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nastasia [14]
3 years ago
5

Periaqueductal gray neurons send descending axons into various regions of the medulla releasing serotonin.

Biology
1 answer:
Evgesh-ka [11]3 years ago
5 0

Answer:

True

Explanation:

Periaqueductal gray matter is found in the middle portion of brain.  When this grey matter is stimulated it activates neurons that releases enkephalin. Enkephalin further direct the stimulation to the raphe nuclei  with in the brain stem that releases serotonin. In this process, the ascending and descending axons are released  from  

a) subcortical nuclei

b) spinal trigeminal nuclei  

c) the spinal cord

Hence, the given statement is true

You might be interested in
In his experiments with different competing pairs of Paramecium species, Gause found that sometimes both species persisted and s
UkoKoshka [18]

Answer: The options are not given, here are the options.

A. One species is much better competitor than the other.

B. Periodic disturbances allow for coexistence.

C. Two species tended to use different resources.

D. The two species experienced interference competition and not exploitative competition.

The correct option C.

Two species tended to use different resources.

Explanation:

From Gause experiments on competing paramecium pairs, He found out that most times both species persisted and sometimes only one did because the two species uses different resources.

Organisms normally compete for limited resources in order to survive and one intend to compete well while other suffer. Both in the case of competing paramecium pairs, the pair use different resources which make the to persist and survive well. Once the resource of one finishes, the other one will persist because it is still surviving on its available resources.

5 0
3 years ago
Which of the following is true about DNA?
inna [77]

Answer: 1) Adenine pairs with thymine, cytosine pairs with guanine

Explanation: Here’s a helpful tip ;) Think of it as apples to trees, cars to garage. Apples being adenine, trees being thymine. Cars being cytosine and garage being guanine.

4 0
3 years ago
What state of mind does alcohol initially produce in most adults after the first drink?
Cerrena [4.2K]

Answer:

euphoria

Explanation:

When a person takes alcohol, he/she feels relaxed and euphoric. This happens because of the release of endorphins. Endorphins are a chemical that produces the feeling of pleasure and happiness. After the first drink, the content of alcohol in blood is 0.05-0.06% which is sufficient to develop euphoric feeling.  

However, some of the consumers have also claimed that it act as a depressant.

8 0
3 years ago
Which of the following describes how the winter season affects organisms in the tundra biome?
alukav5142 [94]

The correct answer is D. Animals not adapted to cold migrate to warmer regions, because suppose that the cold temperatures kill most of the plants, so if they can die why they select that place to live? The option B is not logical because this require long time to evolve this characteristic and the option C has more logic but it still not enough, because if the temperatures are colder more animals can die. I hope this help.

3 0
3 years ago
Other than carbon dioxide name two carbon compounds found in plants.
Liono4ka [1.6K]

Answer:

See below.

Explanation:

Other than Carbon Dioxide (CO₂), two carbon compounds found in plants are :-

  • Glucose (C₆H₁₂O₆)
  • Pyruvic Acid (C₃H₄O₃)
8 0
2 years ago
Other questions:
  • Which class of glycoconjugates contain both d and l-amino acids?
    14·2 answers
  • What causes air masses to move?
    11·2 answers
  • Terbutaline belongs to which drug classification antineoplastic
    12·1 answer
  • An acute infection causing fever and convulsions with tonic spasms of skeletal muscles is called:
    5·1 answer
  • Which of the following is used to classify igneous rocks? A. only its origin B. only its mineral composition C. its origin, text
    10·2 answers
  • Which statement accurately describes a P wave? A. A P wave travels more slowly than an S wave. B. A P wave can travel through li
    8·2 answers
  • What group of protists can be autotrophic, heterotrophic, or both
    12·1 answer
  • Which of the following is true of the water at the bottom of the ocean?
    5·1 answer
  • A 500-gram block of solid cheese is melted in a pot. Which is most likely the
    14·1 answer
  • If you were designing a new insecticide absorbed via the respiratory system in arthropods, the killing chemical would enter the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!