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
Tema [17]
4 years ago
11

The complement system is a ___ barrier of the immune system

Biology
1 answer:
sladkih [1.3K]4 years ago
3 0
I think it's a chemical barrier.
You might be interested in
Based on this video, the definition for an Invasive Species is a ...
irinina [24]

Answer:

Option 2

Explanation:

I did not see the video referenced, but an invasive species is not always brought by people. Furthermore generally there are no limiting factors because it has no natural predators in the environment and often uses up all the resources in that particular environment. Hope this helps!

8 0
3 years ago
Changes on Earth’s surface can happen slowly or at a rapid pace. Identify one example of how Earth’s surface changes slowly and
Pavlova-9 [17]

Answer:

An example of a slow change is erosion and an example of rapid change is an earthquake.

6 0
3 years ago
Which organelles are found in plant cells but not in animal cells?
Valentin [98]

Answer:

Organelles that are found in plant cells, and not in animal cells, are chloroplasts, a call wall, specialized plastids, and a large central vacuole.

Hope you found this helpful <3

8 0
3 years ago
Read 2 more answers
Why do people have different DNA if we are all regular "humans"
elixir [45]
If we all had the same DNA that would mean we would all be the same, no differences <span />
4 0
3 years ago
Bacteria tend to have a bad reputation, but there are many ways that bacteria are actually helpful to organisms. In the gold box
gregori [183]

Answer:

1.Creating products, such as ethanol and enzymes.

2.Making drugs, such as antibiotics and vaccines.

3.Making biogas, such as methane.

4.Cleaning up oil spills and toxic wastes.

5.Killing plant pests.

6.Transferring normal genes to human cells in gene therapy.

7.bacteria help to break down food and keep you healthy.

Other good bacteria can produce oxygen are used to create antibiotics. Bacteria are used in food production to make yogurt and fermented foods. The ecosystem relies on bacteria to function properly.

Hope this helps!!!!

4 0
3 years ago
Other questions:
  • ____ is powered by free energy
    11·2 answers
  • In most ecosystems, the original source of energy for the living things in the system is __________.
    5·2 answers
  • Flow Chart What happens to food and energy when it enters the cell? Finish the description for each organelle. Step 1: Mitochond
    11·1 answer
  • What theory states that species stay the same for a long time and then change quickly because of environmental changes?
    7·2 answers
  • ECG wave that causes ventricles to contract
    12·1 answer
  • HELP!! WILL GIVE BRAINLY <br> Heterozygous for pod shape.<br> A. SS<br> B. Ss<br> C. ss
    13·1 answer
  • Which answer has the correct order of ecosystem organization?
    8·1 answer
  • Select all that apply to the evidence of evolution:
    13·1 answer
  • Help pleaseee. Daniel reads about the survival and reproductive strategies of animals. He is surprised at the complexity of beha
    10·2 answers
  • Select the correct location on the image.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!