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almond37 [142]
3 years ago
10

❗️❗️Please help me :( ❗️❗️

Biology
1 answer:
vekshin13 years ago
4 0
The alveoli are lined with mucus and are surrounded by a network of blood capillaries. They have very thin walls for gases to be absorbed through. An individual air sac is called an alveolus. The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly.

I hope that helps you!
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Sort the observations based on whether they are quantitative or qualitative.
DanielleElmas [232]

The shirt is soft
and red: Qualitative

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7 0
3 years ago
If you found a fossilized dinosaur bone, what method could be used to determine the age of the fossil?
allochka39001 [22]

Answer:

Radiometric dating for the analysis of isotopes in the fossil.

Explanation:

Radiometric dating can be used to determine the precise age of a fossil by measuring isotoped decay within tge fossil or the surrounding rock in contact with it.

6 0
3 years ago
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suppose you balanced a sample against three 10-gram masses. Suppose the sample weighed a little more than three masses, but coul
alexdok [17]

Answer: 241.5

Explanation:

Move the slider on the 100 gram beam to the first mark on the right, which is the 100 gram mark. If the pointer still is above the central mark, continue to move the slider to the right. Once the pointer drops below the central mark, move the slider back to the previous mark to the left. If the pointer drops below the central mark at 100 grams, move the slider back to zero.

Move the slider on the 10 gram beam to the 10 gram mark. Perform the same adjustments you did in the previous step until you find the appropriate slot for the 10 gram slider.

Repeat the same process with the 1 gram slider.

Add the values from each slider. For instance, if the 100 gram slider is on 200, the 10 gram slider is on 40 and the 1 gram slider is on 1.5, you would add 200 plus 40 plus 1.5 to get a total of 241.5 grams as the mass of your object in the tray.

7 0
3 years ago
Which questions below could appear in a dichotomous key for fish? Check all that apply.
jarptica [38.1K]

Answer:

Does the specimen have spots on its body?

Does the specimen have more than three gills?

Does the specimen often eat shrimp instead of other fish?

Explanation:

those are the answeres exept the last one

6 0
3 years ago
What is released through nuclear fusion in stars?
tresset_1 [31]

radiation is the answer

4 0
3 years ago
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