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Nastasia [14]
3 years ago
5

A cell is _______ if it lacks a nucleus and membrane-bound organelles.

Physics
2 answers:
GREYUIT [131]3 years ago
7 0

B. prokaryotic because prokaryotic cells lack a nucleus and membrane-bound structures.

N76 [4]3 years ago
4 0

<u>Answer:</u> The correct answer is Option B.

<u>Explanation:</u>

For the given options:

<u>Option A:</u> Autotrophic organisms are defined as the organisms which produce  their own food for survival. For Example: Green plants

<u>Option B:</u> Prokaryotic organisms are a unicellcular organisms which lack a membrane bound organelles like mitochondria, nucleus etc.. For Example: Bacteria.

<u>Option C:</u> Eukaryotic organisms are multicellcular organisms which have membrane bound organelles like mitochondria, nucleus etc.. For Example: Human beings.

<u>Option D:</u> Heterotrophic organisms are defined as the organisms which do not produce their own food. For Example: Tigers, Lions etc..

Hence, the correct answer is Option B.

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andrezito [222]

Answer:

the answer is false :)

Explanation:

Science is based on theories and tests, if someone has a theory they will test and if it is correct yippie! and if it isn't they will redo the test over until they get it correct or unless it is unsolvable.

3 0
2 years ago
Read 2 more answers
A marble resting near the edge of .90 m high table is given an initial horizontal speed of 1.24 m/s. What will be it’s horizonta
Maru [420]

Answer:

0.53 m

Explanation:

First of all, we have to consider the vertical motion of the ball, in order to find the time it takes for the marble to reach the ground. The initial height is h=0.90 m, the initial vertical velocity is zero, while the acceleration is g=-9.81 m/s^2, so the vertical position at time t is given by

y(t)=h-\frac{1}{2}gt^2

By demanding y(t)=0, we find the time t at which the ball reaches the ground:

0=h-\frac{1}{2}gt^2

t=\sqrt{\frac{2h}{g}}=\sqrt{\frac{2(0.9 m)}{9.81 m/s^2}}=0.43 s

Now we can find the horizontal range of the marble: we know the initial horizontal speed (v=1.24 m/s), we know the total time of the motion (t=0.43 s), and since the horizontal speed is constant, the total distance traveled on the horizontal direction is

x=vt=(1.24 m/s)(0.43 s)=0.53 m

8 0
3 years ago
What is elasticity in polymer generally related to?
Andrej [43]
The elasticity of a polymer is primarily due to the structure of the molecule and the cross-linking between strands. Hydrogen bonding is a contributor to the shape of the molecule, but not a major player in terms of elasticity. We would have to answer "false".
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6 0
3 years ago
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A uniform rod of length 0.8 m and mass 1.4 kg, has two point masses at each end. The point mass on the left end has a mass 1.2 k
VladimirAG [237]

Answer:

Explanation:

1.2(0) + 3(0.8) + 1.4(0.8/2) / (1.2 + 3 + 1.4) = 0.5285714... ≈ 0.53 m

5 0
3 years ago
How are solar energy, wind energy and hydroelectric energy related?
spin [16.1K]
Solar energy, wind energy, and hydroelectric energy are all renewable energy
5 0
3 years ago
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