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3 years ago

7. Mucus traps germs and dust. * True or false

Biology

2 answers:

vekshin13 years ago

6 0

Answer:

true

Explanation:

The air that organisms breathe contains particulate matter such as dust, dirt, viral particles, and bacteria that can damage the lungs or trigger allergic immune responses.

andrezito [222]3 years ago

4 0

Answer:

True.

Explanation:

Mucus is one of your body's mechanisms for collecting all the bad stuff (like dust and germs) and keeping it from traveling in your body.

Think of the snot in your nose, your nose runs when there's a lot of dust in the air, making you sneeze. What else makes you sneeze? When your body senses that there are germs in your nose it needs to expel (get rid of). This is why your snot changes color when you're more sick (like when you have a cold); there will be more germs in the mucus.

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It makes it stronger.

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3 years ago

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What are the two main types of cells and where are they found in the human body?

irga5000 [103]

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They are prokaryotes and eukaryotes and prokaryotes are single celled and eukaryotes are multi celled

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3 years ago

________ seems to prevent muscle loss and preserve rmr most effectively:

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3 years ago

When a potassium ion (K+) moves from the soil into the vacuole of a cell on the surface of a root, itmust pass through several c

goldfiish [28.3K]

Answer:

C. primary cell wall → plasma membrane → cytoplasm → vacuole.

Explanation:

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3 years ago

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Annette [7]

Considering the definition of probability, the correct answer is third option: the approximate probability of a moth being brown and yellow respectively is 33% and 21%

Probability is the greater or lesser possibility of a certain event occurring.

In other words, probability establishes a relationship between the number of favorable events and the total number of possible events.

Then, the probability of any event A is defined as the quotient between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law.

$P(A)=\frac{number of favorable cases}{total number of possible cases}$

In this case, you know that in a moth population, 48 are brown, 30 are yellow, and 67 are black. So, the total number of possible cases is calculated as:

total number of possible cases= 48 + 30 + 67= 145

The number of favorable cases for a moth to be brown is: 48

Then the probability that a moth is brown is calculated as:

$P(A)=\frac{48}{145}$ = 0.33= 33%

On the other side, the number of favorable cases for a moth to be yellow is: 30

Then the probability that a moth is yellow is calculated as:

$P(A)=\frac{30}{145}$ = 0.21= 21%

In summary, the correct answer is third option: the approximate probability of a moth being brown and yellow respectively is 33% and 21%

Learn more about probability:

brainly.com/question/23297275?referrer=searchResults

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2 years ago