Why does nodding of the head signify Yes and shaking of the head No?

Answers

Answer 1

Answer:

Children pick up on everything around them in their life, weather you like them to or not. one the fist acts of shaking you head came from children. when they would be they would turn there head to signify something they did not want. children would also see you moving your head up and down when you do something good, or when someone is happy. this would signify something was good. they would express there emotions by these gestures. Charles Darwin wrote a book on this. I hope this helps!

Answer 2

Answer:

Answer: It is just the way it has been throughout history.

Explanation:

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What type of boundary recycles crust into the mantle?plate boundary

convergent boundary

divergent boundary

transform boundary

Answers

The answer is convergent boundary. This happens at subduction zones which are a type of convergent boundary.

Why are coelomates superior to other body plants?

Answers

Coelomates such as annelids(eg earth worms) have true coeloms or eucoeloms. A true coelom ,unlike the psuedocoelom of nematodes, has tissues that can form muscle next to the digestive tract, allowing them to push food along more efficiently.

Coeloms provide a hydrostatic skeleton to aid movement, allows for more efficient circulation of nutrients and removal of wastes.

Hope this helps:))

Which is a function of nucleic acids?regulate cell processes
provide structure
break down energy
fight disease

Answers

I think regulate cell processes. Since the nucleic acids make up DNA and RNA which coded for proteins productions..

last one ...........

How might an object feel that absorbs light?

Answers

An object that absorbs light would be much hotter upon touch. It might also expand by a few milimeters depending on what material it's made of.

Answer:

An object might feel warm.

Explanation:

Sometimes light contains heat, and the more light it absorbs the warmer it gets.

How does the height of a sloped track effect the speed of a toy car?

Answers

The steeper the slope is, the faster the toy car will go.

The steeper the slope of the track the quicker the toy car will accelerate.

The African plate is moving toward the eurasian plate at a rate of a few centimeters per year how will this era change in 100 million years? consider how continents will change and how the Mediterranean sea will change

Answers

What I did was I said the plates moved 3 centimeters per year and and times it by 100 million years and you get how far the plates have moved against each other. When they move that far against each other, the land would break and pile up to create mountains. Under the sea, the earth would collide and and create a chain of volcanoes. I got a 4/4 for this question, hope this helps you. Good luck!

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