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
In three to five sentences, explain why animal cells do not require a cell wall or a central vacuole for their functions. 15 poi
vaieri [72.5K]

Explanation:

Animals do not possess any sort of cell wall since animals always move, they are not static in one particular place, therefore they need to be flexible.Animal cells lack the thick cell wall that plant cells have, so there is no need for a central vacuole to exert pressure on the surrounding cell

8 0
2 years ago
Read 2 more answers
Which landform is created by a glacier? A. Moraine B. Alluvial Fan C. Sand Dune D. Delta
Lunna [17]
D is the most likely answer because as the glacier moves across the landscape, it leaves many deep ridges into the earth. They eventually collect water and form deltas.
4 0
3 years ago
Read 2 more answers
What is the temperature of the Sun's middle most layer ?
Zinaida [17]

Answer:

The temperature of the Sun's middle most layer is 6,000 degrees Celsius to 20,000 degrees Celsius.

Explanation:

  • The sun is basically divided into inner and outer layer.
  • The inner layer consists of Core, Radiative Zone and Convection Zone.
  • The outer layer has Photosphere, chromosphere, transition region and corona.
  • The chromosphere is the middle layer that can vary its temperature 6,000 degrees Celsius to 20,000 degrees.
  • For most reason the temperature of chromosphere can be taken around 7700 degree Celsius but it varies.
5 0
3 years ago
Read 2 more answers
Does anyone have the answers to the mini lab calculating gpp and npp? i can’t find them anywhere
LenaWriter [7]

Answer:

no

Explanation:

no

4 0
2 years ago
What is the function of fermentation?
Ira Lisetskai [31]
<span>is to regenerate the co enzyme NAD+, so that the glycolysis process can continue to breakdown glucose, produce ATP, and also produce pyruvate for the continuation of the process at the same time in anaerobic conditions when no oxygen is available.</span>
3 0
3 years ago
Other questions:
  • Some facts about plants that can fit in that lil box
    13·2 answers
  • Minerals form from magma in predictable patterns in a process know as
    5·2 answers
  • PLEASE HELP! WILL GIVE BRAINLIEST!!!!!
    6·1 answer
  • ________ is a neurotransmitter with roles in pleasure and pain modulation.
    7·1 answer
  • How was the theory of the sun being made of coal determined to be false​
    12·1 answer
  • Help ! Help ! Help ?
    9·1 answer
  • Question 5
    11·1 answer
  • Please Help! Very Easy! &lt;333<br><br><br><br>What are the ethical concerns of using CRISPR?​
    11·1 answer
  • Alexander is currently walking to class. This is an example of... Behavior Cognition​
    6·1 answer
  • Question 2 of 10
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!