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
iogann1982 [59]
3 years ago
7

The body's first line of defense against infection include all the following except? A. Skin B.mucous membranes C. Acids in the

stomach D.interleukin-1
Biology
1 answer:
kaheart [24]3 years ago
7 0
I think the answer is d because the bodys first line of defense is both physical and chemical barriers ect. skin, tears, mucus, cilia, stomach acid and urine flow 
You might be interested in
Nitrogen fixation is carried out by nitrogen-fixing bacteria that live in the soil and roots of legumes, such as peas, making th
Afina-wow [57]

Answer: The nitrogen cycle

4 0
3 years ago
How many unit operations are involved when in the process of converting green coffee beans into brewed coffee?
Irina18 [472]

Answer:

More than Three (3) unit operations are involved when in the process of converting green coffee beans into brewed coffee. Examples are Drying operation, Milling, Pyrolysis process, Grinding operation, etc.

8 0
3 years ago
Somebody help me so I can give y’all some points
pashok25 [27]

Answer:

b

Explanation:

cbjfgjyjyjyj j5thtjtjyjyjgjyk

6 0
2 years ago
Read 2 more answers
True or false Sepals are found at the tops of the stamen.
jekas [21]
It is false. Sepals collectivaly called calyx protect the outermost part. Its the part that enclosed the developing bud. If you have ever seen a closed rose the green part that eventually opens and can be seen at the base of the flower is the sepal.
4 0
3 years ago
Read 2 more answers
What do you think could be done to reduce levels of carbon dioxide in the atmosphere?
damaskus [11]
We cant really take away the carbon dioxide that is already present in the atmosphere unless with very advanced technologies but we can surely reduce the production level.

The production of carbon dioxide is mostly from the burning of fossil fuels and the gas produced by factories or vehicles.

As ourselves, we may not be able to stop the factories from producing gas and burning fuel but there are still something that we can do to help a bit. For example, turn off the electrical appliances when we're not using. This can save electricity thus to reduce the burning of fossil fuels. Or we can also take public transport instead of private vehicles to reduce the amout or carbon dioxide given out.

As the government, they should set up laws to control the gas produced by factories and vehicles, such as examining the gas content.
8 0
3 years ago
Other questions:
  • When you press your remote control you can see nothing coming from it. However, cameras on certain cell phones can photograph a
    14·2 answers
  • What technology did scientists use in the mid-1900s to map the mid-ocean ridge?
    13·1 answer
  • Scientists estimate that there are between 700,000 and 5.1 million fungi on the planet. From your reading of "The fungi: 1, 2, 3
    11·1 answer
  • Which statement about the giraffes explains their evolution based on Charles Darwin’s main points? a) The closest fossil ancesto
    5·2 answers
  • What area of water serves as nursery grounds for many species of marine fishes and invertebrates?
    9·1 answer
  • Scientific investigations involve many steps and processes. Which characteristics define a laboratory experiment?
    7·2 answers
  • Which vitamin does the human skin synthesize from the Sun’s ultraviolet light?
    13·1 answer
  • A sequence of organisms, each of which serves as a source of nutrients or energy for the next, is called a(n) __________________
    5·1 answer
  • What are important important factors in determining where hazards will occur
    8·1 answer
  • Glycolysis requires ______ atps to work, but makes ______ atps. this results in a net of _________ atps.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!