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
Sophie [7]
4 years ago
13

The complement system is a ___ barrier of the immune system

Biology
2 answers:
m_a_m_a [10]4 years ago
8 0
Biochemical- apart of the second defense system
schepotkina [342]4 years ago
6 0

Answer:

biological

Explanation:

You might be interested in
If oil spill kills majority of zooplankton what is results
DaniilM [7]

Answer:

A literature review demonstrates that crude oil spills can affect phytoplankton, favoring the growth of some while inhibiting the growth of others. Subsequently, the phytoplankton assemblage can change as a result of exposure to crude oil.

5 0
3 years ago
How water resources are being polluted and how can we conserve them ?
vfiekz [6]
Contaminants from farmland, factories, and cities Can runoff into our rivers. Chemicals like nitrogen and phosphorus can produce eutrophication. To help preserve the cleanliness of our water, we can reduce the use of fertilizers and other containments.
4 0
3 years ago
Which description is not a property of a base?
Ymorist [56]
Ph Level lower than 7 because if you look up properties of a base it twlls you what it is
3 0
3 years ago
Read 2 more answers
What is the most likely effect a decrease of plant life in the biosphere would have on the atmosphere?
balu736 [363]
The answer is b. <span>A decrease in plant life would cause carbon dioxide levels to increase and oxygen levels to decrease.

</span>In the photosynthesis, plants take carbon dioxide and water and convert it into glucose and oxygen using the energy of sunlight. A decrease of plant life in the biosphere will increase a level of carbon dioxide in the atmosphere. Fewer plants mean fewer photosynthesis processes, and, thus, decreased levels of oxygen in the atmosphere.
6 0
3 years ago
Read 2 more answers
Which of the following consist of prokaryotic cells?
Ad libitum [116K]

The correct answer is D. Bacteria and archaea

Explanation:

In biology, cells can be mainly classified into prokaryotic and eukaryotic. The prokaryotic cells are cells with no nucleus or centrioles but they do have a cell wall, usually one chromosome and complex cilia and flagella. On the other hand, prokaryotic cells have a defined nucleus, multiple chromosomes, and centrioles and some have a cell wall. Due to the differences between these two type of cells they are part of different organisms, in the case of eukaryotic cells, these are part of the complex organism that includes animals, plants, and fungi while prokaryotic cells are those found in bacteria and archaea which are organisms with only one cell. Considering this, the ones that consist of prokaryotic cells are bacteria and archaea.

7 0
3 years ago
Other questions:
  • Tall is dominant to short in peas. Cross a heterozygous tall male with a homozygous short female. Give the F1 genotype and pheno
    6·1 answer
  • Create a bottom strand that complements to the strand above. ORIGINAL TOP STRAND
    12·1 answer
  • Because cells have a watery environment both inside and outside, the polar ends of the phospholipids in the plasma membrane form
    11·1 answer
  • What activity do all living things do to survive?
    10·1 answer
  • What are the types of trace elements in organic compounds?
    7·2 answers
  • A 1 ml sample of culture liquid contained 1000 viable bacterial cells. You serially diluted it twice, performing 10-fold or 1/10
    7·1 answer
  • Why do sex-linked traits follow different patterns of inheritance than other<br> traits?
    8·1 answer
  • Which type of resource is better for the environment and why?
    13·1 answer
  • Please Help me with Question 14 and 15
    13·1 answer
  • During prophase 1 of meiosis, spindle fibers attach to the.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!