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Sedaia [141]
3 years ago
15

Think about a stalk of corn. You can see it has roots, a stalk, and leaves. You know it reproduces with pollen from the tassels

falling onto the silk of ears. You can’t see the cells in it without a microscope. What evidence could you gather just from the observation that a corn stalk is more likely to be made of eukaryotic cells and not prokaryotic cells?
Chemistry
1 answer:
Shkiper50 [21]3 years ago
5 0

Answer:

The cells of which the corn plant is made up of are eukaryotic cells.

EXPLANATION:

They have all the features such as nucleus and organelles such mitochondria and an endoplasmic reticulum. More primitive forms of life such as bacteria are prokaryotes and lack these things except they do have ribosomes like eukatyotes. Genetic information is processed differently in prokaryotes and eukaryotes but that is another question altogether.;)

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Which molecule has 6 carbon atoms
densk [106]
Glucose molecule has 6 carbon atoms
8 0
3 years ago
3.5 grams is equivalent to how many kilograms? 3500 kg 35,000 kg 0.35 kg 0.0035 kg
bagirrra123 [75]
There are 1000 grams in a kg.
To convert g to kg, dovide by 1000.

3.5/1000= 0.0035 kg

Final answer: D
4 0
3 years ago
Consider the first-order reaction shown here. the yellow spheres in the pictures to the right represent the reactant,
Luda [366]
The rate constant of the reaction K we can get it from this formula:

K=㏑2/ t1/2 and when we have this given (missing in question):
that we have one jar is labeled t = 0 S and has 16 yellow spheres inside and the jar beside it labeled t= 10 and has 8 yellow spheres and 8 blue spheres and the yellow spheres represent the reactants A and the blue represent the products B

So when after 10 s  and we were having 16 yellow spheres as reactants and becomes 8 yellow and 8 blue spheres as products so it decays to the half amount so we can consider T1/2 = 10 s
a) by substitution in K formula:
∴ K = ㏑2 / 10 = 0.069 
The amount of A (the reactants) after N half lives = Ao / 2^n
b) so no.of yellow spheres after 20 s (2 half-lives) =  16/2^2 = 4
and the blue spheres = Ao - no.of yellow spheres left = 16 - 4 = 12
c) The no.of yellow spheres after 30 s (3 half-lives) = 16/2^3 = 2
and the blue spheres = 16 - 2 = 14

8 0
3 years ago
Which sentence best describes the process of convection? A. A rock melts when magma touches it. B. Water vapor in the air forms
Soloha48 [4]
Convection is when cool air sinks and warm air rises. i am not 100% sure though
6 0
3 years ago
The speed of sound in air at 20° C is 343 m/s. Its speed in water at 20° C is 1,483 m/s. How much longer would it take for sound
Alona [7]
<h3>Answer:</h3>

22.41 seconds longer

<h3>Explanation:</h3>
  • Sound is a longitudinal wave that requires a material medium for transmission hence called a mechanical wave.
  • Examples of medium in which sound travels in are water and air.

From the question give;

Speed of sound in air at 20°C is 343 m/s

Speed of sound in water at 20°C is 1,483 m/s

We are given a distance of 10 Km or 10,000 m

We need to finder how much longer it will take for the sound to travel in air.

Time = Distance ÷ Speed

Therefore;

Time taken in Air = Distance ÷ speed of sound in air

                             = 10000 m ÷ 343 m/s

                             = 29.15 seconds

Time taken in water = Distance ÷ speed of sound in water

                                 = 10,000 ÷ 1,483 m/s

                                 = 6.74 seconds

Difference in time = 29.15 seconds - 6.74 seconds

                              = 22.41 seconds

Therefore, it takes 22.41 seconds longer for sound to travel through air than water.

8 0
3 years ago
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