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
Elina [12.6K]
3 years ago
8

What mechanism prevents or slows some chemicals from entering the brain, while allowing others to enter?

Biology
1 answer:
MissTica3 years ago
6 0

Answer:

The blood brain barrier blocks chemicals from entering brain tissue.

Explanation:

You might be interested in
List three structures of nerve cells that are found in animal cells.<br><br> (Science)
Over [174]

Answer:

 its cell body, dendrites, and axon

8 0
3 years ago
Can someone please help?
Tatiana [17]
The answer would be A: 1:16 This is because the letters mean: Y: yellow y: green S: round s: wrinkled Thus, because the lowercase letters represent recessive alleles, both letters must be lowercase in order for the gene to show in the offspring. So, if you wanted green, wrinkled, seeds, the only option (in letter form) would represented by: ssyy Therefore, because there is only one block with those letters, and sixteen blocks total, the ratio is 1:16.
5 0
4 years ago
what are the two types of organ systems found in plants? describe their important functions and modifications, if any.​
ElenaW [278]

Explanation:

Vascular plants have two distinct organ systems: a shoot system, and a root system. The shoot system consists stems, leaves, and the reproductive parts of the plant (flowers and fruits). The shoot system generally grows above ground, where it absorbs the light needed for photosynthesis.

<u>#</u><u>C</u><u>a</u><u>r</u><u>r</u><u>y</u><u> </u><u>(</u><u>n </u><u>Learning</u>

8 0
3 years ago
Las instituciones economicas se encargan de regir
algol [13]

Answer:

<h3>Explanation:Las instituciones económicas son el conjunto de entidades que se forman a través del tiempo y que van encaminadas a regular y establecer leyes con el objetivo de mejorar determinados aspectos de la economía. ... Este funcionamiento económico puede ser en diferentes materias</h3>
8 0
3 years ago
Why can't starch be diffused into simpler sugars before it can enter the cell
Oduvanchick [21]
<span>Since starch is a dissaccharide and is used in many cellular activities
Carbohydrates get stored in the form of long polymers of glucose molecules or as glycogen starch. They provide energy to the animals for performing their daily duties. Carbohydrates are generally considered the fuel for all organisms, and without this most animals would become sloth and would be unable to perform the regular jobs. Carbohydrates are actually very easy to metabolise and hence generate quick energy.<span> </span></span>
7 0
4 years ago
Other questions:
  • What is the ecological role of copepods and krill in the marine environment?
    12·1 answer
  • can someone help me please! i need to write an explanation on my blood circulatory system project but i dont know what to write!
    9·1 answer
  • The first step in restoring pine woodlands is prescribed burning. T or F
    13·2 answers
  • The underlying factor that allows an organism to become separate species is _____.
    8·1 answer
  • How can radar be used for forecast weather?
    8·2 answers
  • If an error in transcription causes the last cytosine in an mRNA sequence that was supposed to read UUG AUC CAA UGC to be replac
    11·2 answers
  • Don't know how to comare water vapor and steam.
    7·1 answer
  • 1.Xander has been told to balance his diet with more fruits and vegetables. Which of the following is a good strategy for him to
    10·2 answers
  • Michael loves playing his clarinet and believes it attracts more rabbits than any other instrument he
    5·1 answer
  • Which of the following environmental justice policies would the Environmental Protection Agency be least interested in
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!