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
mario62 [17]
2 years ago
13

What substance is a pure substance ?

Biology
1 answer:
denis-greek [22]2 years ago
5 0
<span>Hello,

Silver is a pure substance, So B is your answer!


Have a good day mate !!!

Your Friend --- Young Sinatra</span>
You might be interested in
IN NEED OF HELP PLEASE!
denis-greek [22]

Answer: road pipeline

Explanation:

7 0
3 years ago
The immune system has both specific and nonspecific immune responses against pathogens. Which scenario describes a specific immu
vovangra [49]

Answer:

antibodies being produced to fight off a pathogen inside the body

Explanation:

Specific immune responses, also known as the adaptive immune system are ways the body fights against pathogens. The body is able to identify cells that are unique to it. When pathogens bearing an unknown identity enter the body, antibodies are released to attack the antigens on the surface of these pathogens.

The body usually develops this immunity after a previous attack by the pathogen. Lymphocytes known as the B and T cells are released by the immune system t engulf the pathogens.

3 0
3 years ago
Help please
Debora [2.8K]
I’m pretty sure it’s species :)
3 0
3 years ago
Doctors finally understood why a child had difficulty sleeping. They discovered that she had a large tumor located in the part o
Fynjy0 [20]

Answer:

The correct answer is - Pons.

Explanation:

The pons is located t below the midbrain and below the midbrain. It is a group of nerves that function as a connection between the cerebrum and cerebellum.

It is related to the various functions of the body such as sleeping, respiration, swallowing, bladder control, hearing, and many more. These functions

4 0
2 years ago
How can you tell when asthma is related to exercise?
kicyunya [14]

You can tell if asthma is related to exercise

(i)                  If a person has a coughing and shortness of breath. This feels a few minutes after an activity

(ii)                You feel constricted. When on the exercise you feel like you can’t get enough air in your lungs.

(iii)               A person feels fatigue after training instead of being energized.

(iv)              If a person lives in a dry environment the breath in air that is divided and colder than the other parts of your body.

3 0
2 years ago
Other questions:
  • Please help I dot understand
    5·1 answer
  • Where do plants obtain the oxygen necessary to utilize foods?
    8·1 answer
  • Where would sugar most likely be present in water?
    10·1 answer
  • CORRECT + BEST EXPLANATION GETS BRAINLIEST
    6·2 answers
  • PLZZZ HELPPPP I KNO THIS IS EASY IM JUST d U m B!!!!!!
    5·1 answer
  • Osteoporosis is a disease that affects the bones and leads to an increase in bone fractures. Osteoporosis is most likely to be a
    8·1 answer
  • Where does competition for reproduction mostly likely occur
    15·2 answers
  • !!!!Someone help me with this!!!
    5·1 answer
  • Cells in Eukarya and in Archaea all have genomic DNA that is wrapped around proteins called
    10·1 answer
  • What two components are often found as part of an ezyme​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!