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
makkiz [27]
2 years ago
14

What is the body’s first line of defense?

Biology
1 answer:
Hoochie [10]2 years ago
3 0

Answer:

The first line of defence includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

Explanation:

You might be interested in
**Urgent** Will mark brainliest!
mixas84 [53]

Answer:

Although these two animals are both bears, clearly they are entirely different. Becasue they live in pretty much opposite environments, they developed individual traits so they could survive, which is called adaption. While the polar bear's thick fur and fat serve as great protection against the cold, it wouldn't be very helpful in hot climates. And the sun bear, with it's short hair and lack of protection, would freeze to death in the polar bear's environment. Each animal, over time, has to develop new traits that allow it to adapt to it's particular environment.

7 0
2 years ago
Read 2 more answers
Gametes are____ They have_____ the number of chromosomes.<br> hanloid: double half the
Gnesinka [82]

Answer:

b

Explanation:

gametes are a haploid which means half. so it would be half the chromosome number.

6 0
2 years ago
Read 2 more answers
What happens to the most of the energy stored in glucose in anaerboic respiration?
vovangra [49]
Cells undergoing aerobic respiration produce 6 molecules of carbon dioxide, 6 molecules of water, and up to 30 molecules of ATP (adenosine triphosphate), which is directly used to produce energy, from each molecule of glucose in the presence of surplus oxygen
6 0
3 years ago
HElp due now giving brainlist
Arturiano [62]

The answer is decomposer

4 0
3 years ago
______________ is a contractile tissue that can accurately change the lumen size of an arteriole so that the conductance of flow
umka21 [38]

Answer: Vascular smooth muscle cells.

Explanation:

Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).

Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.

Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.

5 0
2 years ago
Other questions:
  • A mixture of sand, silt and clay that forms a good farming soil is called ______.
    5·1 answer
  • In the formation of a macromolecule, what type of bond would join two amino acid subunits?
    15·2 answers
  • Think about the work you completed in your reading role. Determine the ideas that would be
    15·1 answer
  • If a population grows larger than the carry capacity of an ecosystem, the
    9·2 answers
  • Can someone please please please help meeee<br> I’LL GIVE BRAINLIEST!!!
    6·1 answer
  • Statements accurately describe cells?
    8·1 answer
  • Zoom I'd : 4111799601 pswd : 123​
    11·2 answers
  • Water is often called the “universal solvent” becuase many substances can be dissolved in water. What property of water allows i
    5·1 answer
  • Mitochondria contain circular strands of _____, similar to that found in many prokaryotes.
    8·1 answer
  • What type of capillary has large pores within their endothelial cells and are the leakiest?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!