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
likoan [24]
3 years ago
15

What is the immune systems first line of defense against invading pathogens

Biology
1 answer:
GREYUIT [131]3 years ago
8 0
The first line of defense, <span>includes physical and chemical barriers. These include your skin, tears, mucus, cilia, stomach acid, urine flow, bacteria and white blood cells called necrophiliacs.</span>
You might be interested in
A _____ model places Earth at the center of the solar system, with the Sun and planets revolving around Earth. A. scale B. geoce
Natalka [10]

Answer:

B. Geocentric

Explanation:

Geo means Earth, and centric means "in the center". So a geocentric model of the solar system would mean the Earth were at the center of the solar system, with the Sun and planets revolving around the Earth.

3 0
4 years ago
trees that have thick, waxy needles to prevent water loss and protect from the cold would most likely be found in which biome
coldgirl [10]

Answer:

Taigo biome. This biome consists of coniferous trees.

Explanation:

8 0
3 years ago
Read 2 more answers
Which of the following is a statement about climate?
xxTIMURxx [149]
Climate: is the long-term average of weather, typically averaged over a period of 30 years. D is the answer
7 0
4 years ago
A large hole that opens in the ground as a result of over pumping groundwater is a?
mote1985 [20]
A large hole that opens into the ground is called a sink hole
7 0
3 years ago
Read 2 more answers
Which example best represents the use of creativity in scientific inquiry?
patriot [66]
Scientific inquiry when a student would find ideas and gather thoughts on a topic and think about it in depth. An example would be to gather ideas on how animals live in a certain park more than another. 
6 0
4 years ago
Other questions:
  • Archaeopteryx was a:
    14·1 answer
  • Dr. bronson treats anxiety disorders with xanax, which exemplifies ________ therapy.
    14·1 answer
  • Can an ecosystem support an infinite number of deer? Why or why not
    5·2 answers
  • The core of a star must react a temperature of______ degrees Celsius for hydrogen fusion to begin
    9·1 answer
  • As we move above up from one tropic level to another in an energy pyramid, what happens to the energy?
    11·2 answers
  • There's 58 minutes remaining, take your time!
    10·2 answers
  • A student is planning a field study of a pond in which a large increase in algae populations has been observed. large numbers of
    8·2 answers
  • I need help PLEASEEEEE I WILL GIVE U BRAINLEIST:33
    5·2 answers
  • PLSSS HELP GIVING BRAINLIEST
    6·2 answers
  • Which environment is a bare area of land with few trees and plants and a lot of direct sunshine? (2 points)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!