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makkiz [27]
3 years ago
14

What is the body’s first line of defense?

Biology
1 answer:
Hoochie [10]3 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:

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Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock. true or false.
FinnZ [79.3K]
Its false..................
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3 years ago
Identify correct statement from the following
SpyIntel [72]

Answer:

The answer is statement 1, 2, and 3

Explanation:

A hypothesis is a starting point for further investigation, therefore a hypothesis will always be a possibility at least until it is tested.

Variable is a factor that is liable to vary or change.

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A hypothesis can still be proven by further investigation with different variables

6 0
3 years ago
Which feature of earth is created at mid ocean ridges
777dan777 [17]

The correct answer is - underwater mountain ranges.

The mid-ocean ridges are actually underwater mountain ranges, which usually are very long, in fact the longest mountain range on Earth is created on the divergent boundary between the Eurasian and North American tectonic plates and between the African and South American tectonic plates. At the divergent tectonic boundaries we have the creation of new crust which rises from the mantle and fills in the gap between the tectonic plates. Because of the big amount of magma and high pressure, very big and long underwater mountain ranges are formed.

4 0
3 years ago
Read 2 more answers
Alpha particles used in the Gold foil experiments are Helium atoms that__?
Harlamova29_29 [7]

Answer:

2. have no negative particle

Explanation:

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Alpha particles are heavy and positively charged, which make them to be deflected in a magnetic or electric charge. So, the helium atoms used as alpha particles for the gold foil experiment must have no negative particle.

3 0
3 years ago
In Figure 8–4, why might the candle in jar A burn longer than the candle in jar B?
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Need a picture!!
so send me one then I'll answer your question!!!!
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