A marble or small sphere made of stone is found to have a mass of 3.05 grams to find the volume place it on a graduated cylinder that originally contains 10.00 ml of water when the marble is placed on the cylinder the new volume is 11.20 ml. 12 thats adding in the water
Volume=V=1.2cm^3
Density=D=2.541g/cm^3
MRNA transfers genetic information in the nucleus from the DNA to the cytoplasm because DNA never leaves the nucleus
Total Body Fat
this is to compensate for lower caloric output.
Answer: C
Explanation: Most of the energy is lost as heat, the rest is used as energy for the animals. But the energy is still in the ecosystem just not in a form that is usable. So, the energy all ways remains the same. Energy can't be destroyed or created only transformed into a new form.
Answer:
becomes colder in the room
Explanation:
It is true that chimneys draw a lot of air up the stack. Creating a negative pressure throughout the house. Letting cold air in any crack it can. You can call a HVAC technition to do a draft check when everything is running. There are genearlly enough cracks around doors windows and foundation that furnaces and gas water heaters don't need a special vent going to combustion. However, a fire place will use so much air that it will draw air in through the furnace and water heater stack. But, it won't be a fluid flow. It will pulsate. Drawing largeamounts of air up the fireplace and then drawing a brief amount of air out of the fireplace and into the room. You could install below ground or sidewall venting just for the fireplace. Since your house was built in 1935 it should not be very air tight. That is unless someone has systematically sealed the home. The best thing you can do is buy a small stove insert. There are covers you can place over the fireplace opening. But, a stove insert will create a negative presure within the stove and you can limit the amount of air going into the stove. Eliminating the negative presure in the house and stopping the rest of the rooms from getting cold. You will get more BTU's of heat from your wood and now burning wood will actually help reduce your gas bill.
