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
Mnenie [13.5K]
3 years ago
14

Why are external barriers important to our immune system?

Biology
1 answer:
solniwko [45]3 years ago
7 0

Answer:

Maybe it was because external barriers can attack to our body and it can hurt us

Explanation:

You might be interested in
Why doesn't a negative stain colorize the cells in the smear?
iris [78.8K]

Answer:

It is impossible for a negative stain to colorize the cells in the smear because the chromogen of the negative stain carries a negative charge and is repelled as a result of the negative charge present on the surface of the cell. In this light, the stain can only colorize the background, thus permitting visibility of the capsule and the cell.

Explanation:

5 0
3 years ago
Color blindness is an x-linked recessive trait. under what conditions can an unaffected male have a color-blind daughter? his ma
murzikaleks [220]
He is heterozygous for color blindness
6 0
3 years ago
What processes are needed for sedimentary rock to become igneous rock?
7nadin3 [17]

A sedimentary rock can become an igneous rock by melting and solidification.

7 0
3 years ago
Erosion is a destructive force that
Tcecarenko [31]
Erosion<span> is the carrying away of those smaller pieces to another place. Deposition is the process by which</span>eroded<span> materials settle out into another place.</span>
8 0
3 years ago
Explain how an unbalnaced translocation occurs
arlik [135]
Unbalanced translocation is where the exchange of chromosome material is unequal resulting in extra or missing genes.
4 0
4 years ago
Read 2 more answers
Other questions:
  • (07.06 MC)
    7·1 answer
  • PHOTO ATTACHED <br><br> PLS HELP ME ASAP!!
    15·1 answer
  • Scientists can study all aspects of the natural world, including experimenting on an extinct animal
    5·1 answer
  • Essential amino acids cannot be produced by the body, so they must come from our diet. We can get them from eating foods that co
    5·1 answer
  • Define cohesion in your own words. Give an example. Draw a picture.
    11·1 answer
  • Substance X is placed in a Cup. Its shape does not change.
    5·1 answer
  • Match these with the correct section<br><br><br> Answer key :P
    7·2 answers
  • Starting with the basic building blocks, which is the correct order of levels of organization of complex organisms?
    10·1 answer
  • What type of testing allows lab technicians to test pathogenic bacterial specimens for reaction with known antibodies
    9·1 answer
  • What is the role of oxygen in photosynthesis and in cellular respiration?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!