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jekas [21]
3 years ago
8

Suppose when you clap your hands you hear the echo a few seconds later. What can you say about the size of this room?

Biology
2 answers:
defon3 years ago
8 0
It's empty or fairly large, making the sounds from your hands bounce of the walls and therefore having it echo
Dmitrij [34]3 years ago
3 0

Answer: The room is bigger than 17.2 meter

Explanation:

The echo can be defined as the sound that is when produced are reflected back back to the ear of the speaker.

The sound that is heard is reflected sound. The minimum distance that is required to produce an echo is 17.2 meters.

By hearing the echo we can conclude that the size of the room must be more than 17.2 meters.

Hence, the correct answer is more than 17.2 meters.

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Explain what is meant by the term evolution and give an example
Ira Lisetskai [31]
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5 0
3 years ago
Which organelle carries substances to other parts of the cell?
STALIN [3.7K]
The answer will be Endoplasmic Reticulum (ER).

It is a kind of channel that carries substances, such as proteins, oil droplets, water, to other parts of the cell.

Well, to make it easier, endoplasmic reticulum is actually a fancy way of saying "cellular highway". I will explain to you why. I always like to study BIOLOGY relating our activities and our stuff. 

Okay, let's push aside cells. Let's think of us, humans. We can't stay in one place, we gotta moving all around the city. What do we use for moving around the city: either roads or sidewalks or footpaths.

Just like that, a cell also has a medium or road or a channel where all the substances can move around the cell. Well, its ER! So, from now on, everytime you are struggling with this difficult, L O N G word, just replace it with "cellular highway". The ER is like a water pipe, too. Water flows through it. Here, cellur substances flow through it. The ER is connected to the nucleus.

SUMMARY:

1# ER aka Endoplasmic Reticulum is a kind of channel that carries substances, such as proteins, oil droplets, water, to other parts of the cell.

2# 
Try thinking it easy: replace it with "cellular highway".

3# 
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3 0
4 years ago
How are DNA and growth/development related?
OLga [1]

Explanation:

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3 0
3 years ago
Caitlyn has a supracondylar distal humerus fracture, a true surgical emergency. besides the humerus, what other bones articulate
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<span>The ulna is a long bone of the forearm, located at its inner side while the radius, the second bone of the forearm, is located at the level of the outer part (the same side of the thumb)</span>


7 0
3 years ago
Which statement explains why earthquakes tend to be deeper near subduction zones?
ICE Princess25 [194]

Answer:

Option C, At a subduction zone, oceanic crust is forced deep into the Earth.

Explanation:

At sub-duction zone, the dense oceanic plates coincides with the less dense continental plates and thus sink below the continental plates. Sometimes these oceanic plates being dense, sink to greater depth with in the earth’s mantle. The sub-duction zone causes  earth quakes of high intensity when oceanic crust penetrates to greater depths of earth crust as they tend to change the rheology of the earths’ mantle and also causes bending of plates

Hence, option C is correct

5 0
3 years ago
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