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I am Lyosha [343]
2 years ago
14

Easy biology question below first correct answer gets brainliest

Biology
1 answer:
Anna11 [10]2 years ago
5 0

Answer:

25%

Explanation:

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2 materials are exchanged between fetal and maternla blood

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i just took this test and this was correct

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It appears that the same lifestyle factors that contribute to the development of _____ also increase the risk for vascular demen
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Longitude and latitude divide the Earth into how many hemispheres?
Furkat [3]

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Longitude and latitude divide the Earth into four (4) Hemispheres.

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igor_vitrenko [27]
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3 years ago
Use the models that you created in Lesson 2, Lab 1 to help you answer the following question.
masha68 [24]
The answer is <span>B. A smaller cell has more surface area than volume.

</span>This is simple mathematics. Let's imagine that cell is spherical.
Now, we have two spheres: one big (with radius r = 5 cm) and one small (with radius r = 2 cm).
The formula for the surface area of the sphere (A) is A = 4 π r².
The formula for the volume of the square is 4/3 π r³.

Now, let's compare two spheres:

Small sphere:                                                  Big sphere:
r = 2 cm                                                            r = 5 cm
A = 4 π 2² = 50.3 cm²                                      A = 4 π 5² = 314.2 cm²<span>
V = 4/3 </span>π 2³ = 33.5 cm³                                   V = 4/3 π 5 ³ = <span>523.6 cm³ 

According to the calculation, the smaller sphere will have more surface area than volume. This can be extrapolated to all shapes, not only spheres, so the </span><span>smaller cell has more surface area than volume.</span>
3 0
3 years ago
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