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2 years ago

Is light an external or internal stimulus for plant?explain how plants react to light

1 answer:

3 0

External

Stimuli are anything that causes arousal or enables an object to respond or react.

There are many different kinds of stimuli for which is different for every organism, for example, water, light and carbon dioxide are three stimuli and materials needed for photosynthesis in plants to manifest.
<span>In humans, we have nutrients or food, oxygen and water for us to survive. These are stimuli, eyes need light as a stimuli for it see and function. Nasal receptors needs smell as stimuli caused by molecular reactions of an object as a stimuli. And others. </span>

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Write a net ionic equation for the reaction between mno4- and fe2+ in acid solution

dedylja [7]

Answer : The complete net ionic reaction between $MnO _{4} ^{-}$ and $Fe ^{2+}$ in an acid solution, can be written as :-

$MnO _{4} ^{-} + 5Fe ^{2+} + 8 H ^{+} ----\ \textgreater \ Mn ^{2+} + 5 Fe^{3+} + 4 H _{2}O.$

6 0

3 years ago

Inertia increases as an object's_______increases.

lilavasa [31]

Answer:

Explanation:

Inertia increases as an object's <u>Mass</u> increases.

3 0

2 years ago

The relative atomic mass of Chlorine is 35.45. Calculate the percentage abundance of the two isotopes of Chlorine, 35Cl and 37Cl

nata0808 [166]

Answer:

35Cl = 75.9 %

37Cl = 24.1 %

Explanation:

Step 1: Data given

The relative atomic mass of Chlorine = 35.45 amu

Mass of the isotopes:

35Cl = 34.96885269 amu

37Cl = 36.96590258 amu

Step 2: Calculate percentage abundance

35.45 = x*34.96885269 + y*36.96590258

x+y = 1 x = 1-y

35.45 = (1-y)*34.96885269 + y*36.96590258

35.45 = 34.96885269 - 34.96885269y +36.96590258y

0.48114731 = 1,99704989‬y

y = 0.241 = 24.1 %

35Cl = 34.96885269 amu = 75.9 %

37Cl = 36.96590258 amu = 24.1 %

3 0

2 years ago

Determine the volume of the graduated cylinder below

andreyandreev [35.5K]

Answer:

its around 12.7

Explanation:

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2 years ago

Why is asexual reproduction simpler in prokaryotes?

Paha777 [63]

Answer:

In asexual reproduction, a single parent produces genetically identical offspring. As prokaryotes do not have a nucleus, and have only one circular chromosome, they do not need to reproduce by the same mechanism as eukaryotic cells; mitosis does not exist in prokaryotic cells.

Explanation:

8 0

3 years ago

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