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mash [69]
2 years ago
14

Chromosomes are made of ________ and __________?​

Biology
2 answers:
Alecsey [184]2 years ago
7 0

Answer:

Proteins and DNA organized into genes

Explanation:

solong [7]2 years ago
6 0

Answer:

thwy are made out of organisms and genetics

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Which of the following statements is true
OleMash [197]

Answer:

B. Form of active transport

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3 years ago
Sam’s teacher is trying to model the day/night cycle on Earth. One student holds a large yellow ball to represent the Sun. Anoth
Orlov [11]
Hello!

So, day and night are caused because the earth makes a full rotation on its axis once every 24 hours.

That way, have of Earth is facing the sun (it is morning on that side) and the other half isn't (which is why it is nighttime over there).

For example, if it's nighttime in Canada and America, it's morning in Pakistan and India. This is because Pakistan and India are facing the sun whilst Canada and America are not.

A N S W E R:

The balls should be moved so that half the Earth is facing the sun and the other half is not. This would be 24 hours. As for the sun, it is a gas, not a solid, so it doesn't rotate like one. However, that does not mean that it is not rotating to some extent.
4 0
4 years ago
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Volume can be measured in:<br> A.centimeters<br> B.square centimeters<br> C.cubic centimeters
Basile [38]
Cubic centimeters is the answer
3 0
3 years ago
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How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

3 0
3 years ago
What is the dependent variable in her experiment?
alex41 [277]

I agree with the other person you answered the answer is B duckweed growth

8 0
3 years ago
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