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enot [183]
3 years ago
7

Anyone know the answer to this question?

Biology
1 answer:
disa [49]3 years ago
7 0

Answer:

1. hydrogen; 2

2. it means two strands of DNA twisted around each other like a winding staircase

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Who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.
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2 years ago
Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a momen
pishuonlain [190]
<h2>Cannon -Bard theory</h2>

Explanation:

  • Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a moment later, he realizes how frightened he is. This sequence of events is BEST explained by the <u>Cannon-Bard t</u>heory of emotion.

According to Cannon-Bard theory, all the emotional expressions occur due to the stimulation of hypothalamic structures present in brain. This theory also states that feeling and physiological effects of an emotional stimuli occurs simultaneously.

Here, James thinks that a bear is coming, this is a stimulus. His heart starts pounding that is the physiological effect of the stimulus and the next moment he feels frightened which is a feeling.

So we conclude that in this case, the physiological effect and feeling of emotion occurred simultaneously. So these sequence of events is best explained  by Cannon-Bard's theory.

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3 years ago
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Write an essay stating your opinion on whether pollution is a problem caused by a few or a problem caused by many?
goldenfox [79]
Does nature really hurt itself? does nature want to be ruined? if I would be a nature I will kick those people that have nothing to do but hurt me. Pollution is a result of human activities. it is a problem caused by many.
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3 years ago
a 2-kg bowling ball is 1 meter off the ground on a post when it falls. Just before it reaches the ground, it is traveling 4.4 m/
lawyer [7]
Well... Since 2+1=3 and 3+1=4 that means 3+4=7. Following me here? Good. Let's move on. Now, we take the 7 and multiply it by 4.4 to get 30.8. Now take your 30.8 and divide it by 360 (degrees; that is the circumference of a circle and the Earth is a circle) to get .08555 repeating. Now add them all up, it should look something like this... 2kg+1m+4.4m/s+.08555= ~8.25kgmm/s. Congratulations! You found the answer! It is about 8.25 kgmm/s squared. Good job!
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Why did Mendel use pea plants in his experiments?
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The answer is C, they reproduce quickly
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