answer.
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
Zepler [3.9K]
1 year ago
5

Astrocytes and tight junctions create a barrier to viruses and bacteria known as

Biology
1 answer:
Soloha48 [4]1 year ago
4 0
<span>Answer:The blood-brain barrier (BHE)

 BHE is a barrier that's highly permeability selective and protects the central nervous system  from potential dangers like viruses, bacteria and parasytes that may be circulating int he blood. <span>It is composed of endothelial cells, astrocytes, pericytes.</span></span>
You might be interested in
Fat absorption through the plasma membrane of epithelial cells ________.
erastovalidia [21]

Answer:

C) occurs by simple diffusion because lipids are able to penetrate the hydrophobic fatty acid tails within the plasma membrane

Explanation:

After digestion of lipids, monoglycerides and fatty acids associate with bile salts and phopholipids to form micelles. Micelles are structures that are necessary for the transport the poorly soluble monoglycerides and fatty acids to the surface of the enterocyte. But, micelles cannot be absorbed by epithelial cell, only freely dissolved monoglycerides and fatty acids can. Free fatty acids and monogycerids can just diffuse across the plasma membrane because of their nonpolar nature.

 Some absorption (e.g. for cholesterol) may be facilitated by specific transport proteins.

5 0
2 years ago
Selection harvesting is the process of selecting certain trees for harvest, while leaving some to grow older. This promotes an u
Sonja [21]

Answer: b. Increased nutrient run-off

Explanation:

Nutrient run-off is when an excessive amount of nutrients like Nitrogen and Phosphorous find themselves in bodies of water. This acts as a fertlizers and promotes algae growth.

This algae growth compromises the qualiy of water and depletes the oxygen in the water. This essenfially harms the habitat thus this is noy an ecological benefit.

7 0
2 years ago
The thalamus ______. the thalamus ______. is a "bridge" that relays nerve impulses between the cerebrum and cerebellum via the m
nekit [7.7K]
I think the thalamus is the gateway to the cerebral cortex. Thalamus is a small structure within the brain located just above the brain stem between the cerebral cortex and the mid brain and has extensive nerve connections to both. Its main function is to relay motor and sensory signals to the cerebral cortex. A sensory impulse travels from the body surface towards the thalamus, which receives it as a sensation, which is then passed onto the cerebral cortex for interpretation as touch, pain or temperature.
8 0
1 year ago
Exotic pets, such as lizards and tarantulas, have increased in popularity. These animals are caught in the wild and sold as pets
vivado [14]

If hunted and sold, animals will have a lower chance of reproducing apart from not being there themselves, decreasing their population.



Having less species inhabiting an area, means less food for some predators. Which means that competition will occur among preators since food will be scarce.

Answer:


\boxed{\bf~B~and~c~are~possible~answers.}



Hope it helped,


Happy homework/ study/ exam!

5 0
1 year ago
Read 2 more answers
what questions and answers lead you to the decision that an organism is from the kingdom Archaebacteria
Arte-miy333 [17]

Explanation: we will conclude this by the following characteristics:

1.organims that lack a proper nucleus.

2.they have membrane bounded organelles

3.they are tiny single cell oraganisms which cannot be seen by naked eye.

4.they are the oldest livinh organisms on earth

5.they are present in very harsh conditions like volcanic vents or at the bottom of the sea

5 0
2 years ago
Other questions:
  • several of the flame tests were shades of red. what should be done in the laboratory to correctly identify one of these ions
    14·1 answer
  • How does the chance of a coin landing on each side compare to the chance that a gamete cell will receive a particular gene at me
    10·2 answers
  • Ben uses a reusable storage bag to carry snacks to school. Debbie uses a similar bag to store pencils so her backpack doesn’t ge
    15·2 answers
  • The enzyme pepsin is formed from pepsinogen through the action of ________.
    13·1 answer
  • The cell membrane of the red blood cell will allow water,oxygen,carbon dioxide, and glucose to pass through.Because other substa
    11·1 answer
  • An investigator wants to understand whether a newly found membrane protein is involved in membrane transport of a certain partic
    13·2 answers
  • A tyrosine kinase receptor is different from a G-protein linked receptor in that it can trigger _________ at the same time. When
    6·1 answer
  • Consider a situation in which the enzyme is operating at optimum temperature and pH, and has been saturated with substrate. What
    10·1 answer
  • What are two ways that a zoo could provide food to an animal<br> that eats plants?
    9·2 answers
  • Base your answers to the next question on the diagram below and on your knowledge of biology. The diagram represents a laborator
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!