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Basile [38]
3 years ago
10

When you are exposed to disease causing germs which type of tissue is your first line of defense

Biology
1 answer:
VladimirAG [237]3 years ago
5 0
The answer is your white blood cells
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<img src="https://tex.z-dn.net/?f=%5Csmall%5Cbold%5Ccolor%7Bviolet%7D%7BNeed%20%5C%3A%20help%20%5C%3A%20here%20%5C%3A%20plss%7D"
forsale [732]

Answer:

13 - D

14 - D

15 - C

Explanation:

for 13

A molecule is two or more atoms chemically combined

An example would be carbon dioxide which contains the two atoms, carbon and oxygen

Reasons its not the other answers:

Electrons, Protons and Neutrons are all parts of an atom therefore they cannot be classified as molecules.

For 14

Remember an atom is the most basic unit out of the units we are talking about

The answer would be D

Reasons its not the other answers

Water is considered to be a molecules as it contains two or more atoms (hydrogen and oxygen)

Air is considered to be a mixture as it contains oxygen and nitrogen which can be separated

Salt is considered to be a compound because salt is made up of two atoms (chloride and sodium) in which they are held up by an ionic bond

For 15

The answer would be C (III only)

Carbon hydrogen and oxygen all happen to by atoms

Reasons its not other answer choices:

Like stated previously water is considered to be a molecule therefore we can eliminate the other answer choices

Other notes:

Compounds and molecules both are combinations of two or more atoms however they are not to be mixed together

the main difference between compounds and molecules is how they are held together

Compounds are held together by ionic bonds while molecules are help up by covalent bonds

compounds and molecules  are made up of atoms that cannot be separated

Mixtures - A mix of two or more substances that can be separated

3 0
3 years ago
Sedimentary rocks are formed when soil, rocks, or the remains of dead organisms undergo layering and compaction over a long peri
Tasya [4]

D.) The original items making the rock.

6 0
3 years ago
Read 2 more answers
How is oxygen taken into the body?​
UNO [17]

Answer:

Oxygen enters the body in the mouth and nose, passes through the larynx and the trachea. The trachea splits into two bronchial tubes, which lead to smaller tubes that lead to 600 million alveoli, which are small sacs surrounded by capillaries. The capillaries take oxygen into the arteries, and the oxygen-rich blood is then pumped into every cell of your body. Once the oxygen has been absorbed, carbon dioxide and water are eliminated through the lungs.

Explanation:

good luck!

6 0
2 years ago
What's the main term used to locate information on the alphabetic index recurring canker sore in the mouth
Tema [17]

Answer:

aphthous ulcers

Explanation:

I took a medical course so i know :D

PS: thank and nark me brainly plzzz

7 0
3 years ago
A.hydrophobic tail<br> B.hyrophobic head <br> C.sodium-potassium pump<br> D.ATP
Lostsunrise [7]

Answer:

A. Hydrophobic tail

Explanation:

Refer the attachment

4 0
2 years ago
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