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
sashaice [31]
3 years ago
14

All these belong to the second line of defense except

Biology
1 answer:
babunello [35]3 years ago
6 0

Answer:

Option D, Gastric Juices

Explanation:

The second line of defense is a non specific defense mechanism in which no specific individual is targeted but all invaders are killed in general way. Some common mode of second line of defense are - Phagocytic cells (white blood cells), inflammatory responses, macrophage system etc. The second line of defense comes into action when the invader has surpassed the first line of defense which include either physical barrier like skin, mucous membrane, hair, cilia etc. or chemical barriers like gastric juices, saliva, Hyaluronic acid etc.

Hence, gastric juice does not belong to second line of defense.

Thus, option D is correct.

You might be interested in
Which of the following is not a negative consequence of upward urban growth? a. pollution b. creation of a “heat island” c. incr
Murrr4er [49]
Solution: C. Increased use of surrounding land

Upward urban growth will increase pollution as the number of people will increase. The increase in population and obstruction of free movement of air because of upward urban growth will result in a "heat island". Since the number of inhabitants is going to increase with upward urban growth, waste management will also become an issue.
4 0
3 years ago
Read 2 more answers
Between two organisms in
Ainat [17]

Answer:

This question is not well placed. It should be " a relationship between two organisms in which both benefit is called".

The answer is SYMBIOSIS

Explanation:

Living organisms tend to interact with one another in their natural environment. This interaction are of different types depending on the effect on the involved organisms. One of those interactions is SYMBIOSIS. Symbiosis is a relationship between two organisms in which both of the organisms benefit from one another.

An example is the relationship between the "CATTLE AND EGRET". The cattle provides food for the egret when they feed on the insect parasites on their body while the egret helps the cow get rid of detrimental parasites.

7 0
3 years ago
Can octopuses regenerate teeth?
Kitty [74]
No they cannot. Lol lol lol
4 0
2 years ago
Read 2 more answers
Menciona 2 propiedades de una onda ??​
viva [34]

Answer:

una propiedad que varía y la otra que permanece constante cuando la onda pasa de un medio a otro. Las dos propiedades son: i) Longitud de onda ii) Frecuencia

Explanation:

Hope it helps :)

7 0
3 years ago
Which pure form of carbon is used in pencil lead? charcoal coal fullerene graphite
kotegsom [21]

Graphite is well known to be pencil lead - You might actually learn this in Chemistry/Physical Science like we did!

Charcoal & coal you cannot use - you could but it'd be difficult and irritating.

Fullerene is the third form of carbon. It can be used for electronics AND medicine. Amazing right??

8 0
3 years ago
Other questions:
  • Which of the following is not a true statement about ATP
    13·1 answer
  • Because of the relatively high altitude of Antonito, Colorado, the town has a normal barometric pressure of about 600 mm Hg rath
    7·2 answers
  • The water content of a typical human cell is around 65 - 70%. Using your knowledge of cellular anatomy and physiology, what is t
    15·1 answer
  • Is Earth's surface mainly shaped by water running downhill?
    8·2 answers
  • Trace the movement of blood through the human body in the circulatory system. List the different vessels and organs involved.
    6·1 answer
  • Which activity can occur without the use of
    9·2 answers
  • Help Me To Check With This
    12·1 answer
  • Which is the largest organ? sartorius skin hair gluteus maximus
    9·2 answers
  • How does energy get from one organism to another?
    15·2 answers
  • Glucose is what type of molecule A: Multi- complex B: Protein C: Sugar D: Lipid
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!