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In-s [12.5K]
3 years ago
10

Select the answer below that best describes how the lungs are kept free of germs and dirt from the air

Biology
2 answers:
mylen [45]3 years ago
5 0

Answer:

The Alveolar macrophages, Cilia and the mucus layer

Explanation:

tangare [24]3 years ago
4 0
The Alveolar macrophages, Cilia and the mucus layer
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Competition will increased because more organisms will be competing for resources
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Asap.....Explain how observations are used to form hypotheses​
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Explanation:

Observations allow us to collect data that we can connect back to the central problem. From this data we can start to form hypotheses (predictions on possible solutions or outcomes).

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Questions
skad [1K]

Answer:

cell

tissue

organ

system

human organism

Explanation:

unicellular organisms only have one cell since two or more cells form a tissue their level of organization is restricted to cell

cell

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2 years ago
Brian indicates that the mutation is in a gene found in the mitochondrial DNA. What does Brian mean by that and why did he signi
vovangra [49]

Answer:

Change occur in the genetic makeup.

Explanation:

Brian means that the change occur in the genetic makeup of the mitochondrial DNA that change the structure as well as the function ability of mitochondria which is responsible for the generation of energy for the cell. The mitochondrial DNA are passed from mother to offspring through the egg cell. He signify mitochondrial DNA because the change occur only in the mitochondrial DNA not in the whole organism's DNA.

6 0
3 years ago
a gymnast has a weight of 600 in each hand is 150cm calculate the pressure of the floor doing a handstand
Sholpan [36]

Answer:

20

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pressure =force/area

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I think this is right, you need to put the units on your answer

4 0
3 years ago
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