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iogann1982 [59]
3 years ago
9

Where dose mass of a willow tree come from

Biology
1 answer:
MA_775_DIABLO [31]3 years ago
3 0

Answer:

So where does the mass come from? The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.

Explanation:

Hope it helps! Correct me if I am wrong :>

Im sure about my answer :>

If you dont mind can you please mark me as brainlest?

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An animal trainer is conditioning an elephant to startle at the sound of a trombone. Every time she plays the trombone, she then
ANTONII [103]

Answer:

The correct answer is option D, that is, the elephant will not react.

Explanation:

A kind of behavior that comprises a stimulus-response, which is distinct from the natural one is termed as conditioning. It is a kind of learned behavior. It is a kind of learning where the efficacy of stimulus enhances while provoking a response. When the presentation of two stimuli is done at a suitable time and with appropriate intensity, then one of them will be able to provoke a response that resembles the other one.  

In the given case, the mouse and the trombone are termed as unconditioned and conditioned stimuli. When a conditioned stimulus is demonstrated in a context of classical conditioning, it will result in the non-predication of the coming unconditioned stimulus. The conditioned response will get to cease slowly and will eliminate the conditioned fear. Thus, in the given case, the elephant will fail to react towards the trombone subsequently.  

8 0
4 years ago
What are two ways scientists use evidence of past environments preserved in rock?
Aleonysh [2.5K]

I think it is A and D (at least those are the ones that made the most sence to me).

7 0
3 years ago
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There area in which surface water flows into s single sream is called
Triss [41]
The answer is watershed. 
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7 0
3 years ago
Which of the following heart block dysrhythmias is identified by a repetitious prolonging PR interval pattern after each blocked
dangina [55]

Answer: Option A.

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Explanation:

First degree atrioventricular block is a condition that is associated with electrical condition system of the heart in which the electrical impulses is conducted from the cardiac atria to the ventricles via atrioventricular node in a slow manner compare to the normal transmission.

It is first degree great block because it is characterized by prolong PR interval on an electrocardiogram (ECG) to more than 200 msec and atrial impulse is transfered to the ventricles, which lead to regular ventricular rate.

The PR interval of the surface ECG is measured from the start of atrial depolarization (P wave) to the commensement of ventricular depolarization or QRS complex.

5 0
3 years ago
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I dont think i'm answering your question, but the sun turns into a red giant, and the more it gets bigger it gets, the more closer it is to the planets. Then eats up the the planets later on, and explodes. Dont know if im correct tho sorry

6 0
3 years ago
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