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Bumek [7]
4 years ago
7

A biology student views several different prokaryotic and eukaryotic cells under a microscope. How do the prokaryotic cells appe

ar different from the eukaryotic cells? Choose 1 answer: (Choice A) A The prokaryotic cells have mitochondria. (Choice B) B The eukaryotic cells have cytosol. (Choice C) C Eukaryotic cells have ribosomes and prokaryotic cells do not. (Choice D) D The prokaryotic cells are smaller than the eukaryotic cells.
Physics
1 answer:
Fofino [41]4 years ago
7 0

Answer:

The prokaryotic cells are smaller than the eukaryotic cells.

Explanation:

Its just the simple process of elimination. Prokaryotic cells lack of a lot of things, including mitochondria, so it couldn't be option C. BOTH prokaryotic and eukaryotic cells have cytosol AND ribosomes, so the answer couldn't be D or A, and you're left with option B. Meaning option B is the correct choice.

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Pretty much any element(in your case sodium) contain these properties.

Atoms can be an ion, but not all ions are atoms. The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. ... A stable atom contains the same number of electrons as protons and no net charge
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3 years ago
In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 100-meter dash in 9.69 seconds. Determine Usa
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Answer:

His average speed was 10.3199 m/s.

Explanation:

4 0
4 years ago
Kyle, a 80.0 kg football player, leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.
vagabundo [1.1K]

Answer:

The velocity of ball is 23.19 m/s

Explanation:

Given that,

Mass of football player = 80.0 kg

Mass of ball = 0.430 kg

Distance = 0.538

We need to calculate the time

Using equation of motion

s = ut+\dfrac{1}{2}gt^20.538=0+\dfrac{1}{2}\times9.8\times t^2t^2=\dfrac{2\times0.538}{9.8}t=\sqrt{\dfrac{2\times0.538}{9.8}}t=0.33\ sec

We need to calculate the velocity

Using formula of velocity

s=v\times tv=\dfrac{s}{t}\\Put the value into the formula\\v=\dfrac{0.0409}{0.33}\\v=0.124\ m/s\\

We need to calculate the velocity of ball

Using conservation of momentum

m_{1}v_{1}+m_{2}v_{2}=mv

Put the value into the formula

80.0\times0.124+0.430\times0.124=0.430\times v\\v=\dfrac{9.97332}{0.430}\\v=23.19\ m/s

The velocity of ball is 23.19 m/s

3 0
4 years ago
Read 2 more answers
2) Which of the following characteristics is associated
Anestetic [448]

Answer:

The correct answer should be high amplitude : )

Explanation:

A high energy wave is characterized by a high amplitude, a low energy wave is characterized by a low amplitud

6 0
2 years ago
The pressure in a section of horizontal pipe with a diameter of 2.5 cm is 139 kPa. Water ï¬ows through the pipe at 2.9 L/s. If t
My name is Ann [436]

Answer:

d = 2*0.87 = 1.75 cm

Explanation:

by using flow rate equation to determine the  speed in larger pipe

\phi =\pi r^2 v

v = \frac{\phi}{\pi r^2}

  = \frac{2900 cm^3/s}{3.14(1.25cm)^2}

= 591.10 cm/s

 = 5.91 m/s

by Bernoulli's EQUATION

p1 +\frac{1}{2} \rho v1^2 = p2 +\frac{1}{2} \rho v2^2

139000+ \frac{1}{2}*1000*5.91^2 = 101000 +\frac{1}{2}*1000* v2^2

solving for v2

v2 = 10.53 m/s

diameter can be determine by using flow rate equation

q = v \pi r^2

r^2 = \frac{q}{\pi v}

     = \frac{2900}{3.14*1053}

r = 0.87 cm

d = 2*0.87 = 1.75 cm

5 0
3 years ago
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