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3 years ago

Groups of organs that work together to complete a process in the body are called:

Physics

2 answers:

Ainat [17]3 years ago

3 0

Answer:

systems

Explanation:

they are a bunch of things functioning together

Ilya [14]3 years ago

3 0

Answer:

D. systems, termed as "organ system".

Explanation:

The organ system is a system that consists of a group of organs that work together to ensure that the organism continues to survive.

Tissues are next in creating the specific organs, and are generally classified depending on the organ it is part of. Note that not all tissues are the same.

Cells are "the smallest", and groups of cells create tissues.

Nerves are part of the Nervous system, which helps provide sensory to the body to help react when the body comes into contact with something that may hurt body parts.

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Geologists have divided Earth's history into time units, which are regularly based on

Arturiano [62]

They are based on layers of rock the correspond to certain time periods, so my guess would be D.

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3 years ago

What are the differences between refraction and diffraction?

Liula [17]

Refraction is the change in direction of a wave.
Diffraction is the bending of a wave around a barrier.

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3 years ago

The membrane that surrounds a certain type of living cell has a surface area of 5.1 x 10-9 m2 and a thickness of 1.4 x 10-8 m.

ziro4ka [17]

a) The charge on the outer surface is $1.2\cdot 10^{-12} C$

b) The number of ions is $7.5\cdot 10^6$

Explanation:

The membrane behaves as a parallel plate capacitor, whose capacity is given by the equation

$C=\frac{k\epsilon_0 A}{d}$

where

k = 4.3 is the dielectric constant

$\epsilon_0 =8.85\cdot 10^{-12} F/m$ is the vacuum permittivity

$A=5.1\cdot 10^{-9} m^2$ is the surface area

$d=1.4\cdot 10^{-8} m$ is the distance between the two plates

Substituting,

$C=\frac{(4.3)(8.85\cdot 10^{-12})(5.1\cdot 10^{-9})}{1.4\cdot 10^{-8}}=1.4\cdot 10^{-11} F$

The capacity of the membrane is related to the potential difference between the two surfaces by

$C=\frac{Q}{\Delta V}$

where here we have

Q = excess charge on one surface

$\Delta V = 85.5 mV = 0.0855 V$ is the potential difference between the two surfaces

Solving for Q, we find

$Q=C\Delta V=(1.4\cdot 10^{-11})(0.0855)=1.2\cdot 10^{-12} C$

We said that the net charge on the outer surface is

$Q=1.2\cdot 10^{-12} C$

The charge of one K+ ions is equal to the electron charge

$+e=1.6\cdot 10^{-19} C$

Therefore, the number of ions on the outer surface can be found by dividing the total charge by the charge of a single ion:

$N=\frac{Q}{e}=\frac{1.2\cdot 10^{-12}}{1.6\cdot 10^{-19}}=7.5\cdot 10^6$

Learn more about capacity:

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#LearnwithBrainly

6 0

3 years ago

Neptune is approximately 4.5 billion kilometers from the sun. What is this distance in AU?

asambeis [7]

Well, one AU is 149,597,870 km. So, we would basically have to divide 4.5 billion km by 149,597,870, right?

4,500,000,000/149,597,870=30.080642 AU.

So, the correct answer would be 30 AU. Hoped this helped!

7 0

3 years ago

Why does the biosphere not have distinct boundaries?

Alexeev081 [22]

Answer:

living things are found in air, water, and soil.

Explanation:

7 0

3 years ago