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
Ket [755]
3 years ago
13

Which of the following chemical mediators is secreted onto the surface of the skin?

Biology
1 answer:
wlad13 [49]3 years ago
3 0

Answer: Sebum

Explanation: Sebaceous gland secretes sebum which is a chemical mediator that helps in lubrication and protection.

The sebaceous gland is present in skin and produces oil which is an endogenous mediator which provides a seal for the harmful microorganism so that they cannot the body through skin.

In this way it also protects the sweat gland which produces sweat.some of the bacteria that causes acne uses lipase to degrade sebum and causes infection.

Hence, the correct answer is option B

You might be interested in
I NEED HELP The measure of how resistant a solid is to shape change when a force is applied.
enyata [817]

<em>Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied</em> <em>Macroscopic hardness is generally characterized by</em> <em>strong intermolecular bonds</em>, <em>but the behavior of solid materials under force is complex; therefore,</em> <em>there are different measurements of hardness</em>: <em>scratch hardness, indentation hardness, and rebound hardness. Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and super hard materials, which can be contrasted with soft matter.</em>

3 0
2 years ago
Which of the following is true of red blood cells? A. They live for only 120 days. B. They have multiple Nuclei. C. They live fo
zysi [14]
Correct answer is (D. Once created in bone marrow, they circulate for our lifetime)
8 0
3 years ago
Read 2 more answers
Match each part of a cell to its structural features.
kobusy [5.1K]

Answer:

Cell structure

Explanation:

6 0
3 years ago
A. What overabundant gas have humans accumulated in our atmosphere that
german

Answer:

CO2 overabundant gas have humans accumulated in our atmosphere that has caused the greenhouse effect

5 0
2 years ago
Which process is the first step of making a protein from DNA instructions?
-BARSIC- [3]

The first step of protein synthesis is called transcription. The DNA transcription to mRNA is actually the first step of the protein synthesis. During the transcription step the instructions encoded in the DNA of the genes are transcribed into the nucleotide sequence code of a ribonucleic acid (RNA)....

so your answer is Option (A)


4 0
3 years ago
Other questions:
  • The skin of an animal should be examined for
    8·1 answer
  • Which of the following is a detritivore?
    10·1 answer
  • Which of the following statements is INCORRECT?
    8·1 answer
  • What benefits are associated with Magic Johnson's announcement concerning his HIV-positive status? What risks or drawbacks can y
    5·1 answer
  • Every november, tens of thousands of sally lightfoot crabs on christmas island leave their rain forest habitats at the same time
    12·2 answers
  • Nerve cells are the only cells with a resting membrane potential. <br> (a) True <br> (b) False
    15·1 answer
  • A plant absorbs 200 J/g of energy from the sun. A cow eats the plant and absorbs 120 J/g of energy. The cow is fed to a group of
    5·1 answer
  • The Linnaean system of classification used a nested hierarchy to sort organisms into groups based on similarities and difference
    15·2 answers
  • Choose THREE human activities that have a negative impact on the
    12·1 answer
  • What are the characteristics of the inner planets? (Check all that apply)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!