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emmainna [20.7K]
3 years ago
15

What does the modern atomic theory state

Biology
1 answer:
denis23 [38]3 years ago
3 0
The modern atomic theory states that all matter is made out of atoms and that they cannot be destroyed or created out of nothing. They can't be changed, but they can be combined with other atoms and create new compounds.
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juin [17]
Cell membrane is the answr
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3 years ago
Read 2 more answers
I really need these!!
s2008m [1.1K]
1- Combustion reactions are exothermic reactions since these reactions result in the emission of heat (heat is a product and not a reactant)

2- A substance with higher specific heat that water would be liquid ammonia. This means that, for the same amount of energy given to both water and liquid ammonia, water will heat faster and gain more thermal energy (in degree celcius) that liquid ammonia.

3- Conduction : occurs when heat is directly transmitted from a material to another due to the difference in temperature between both. Examples are:
a- when using an iron the heat is transferred from the  iron to the piece of clothe being ironed
b- if you hold a hot cup heat will transfer to your hand
c- when you hold chocolate with your bare hand it will melt due to the transfer of heat from your hand to the chocolate
d- when you heat food on the stove the heat will transfer from the flame to the pan
e- when you hold ice it melts due to the transfer of heat from your hand to the ice piece
f- when you place hot liquid in a cup the heat will transfer from the liquid to the cup and the cup will become hot
g- if you place a spoon in a plate containing hot food the heat will be transferred from the food to the spoon making it hot
h- when you walk on the sand beach during summer the heat will be transferred from the sand to your feet and your feet will be hot
i- if you hold someone's hand when he/sh is cold the heat will be transferred from your hand to his/hers
j- Light bulbs emit heat, if you touch them this heat will be transferred to your body

4- Convection : is the transfer of heat through liquids or gases. Examples:
a- when water at the bottom of a pot is heated, it transfers this heat to the water above by convection
b- the process of ice melting when left in the air where heat is transferred from the air to the ice
c- the same goes for chocolate melting
d- cooling a frozen substance using running water where heat is transferred from the water to the frozen substance
e- when you stream a hot cup of tea/coffee, you transfer heat from the tea/coffee to the air
f- when a radiator moves the hot air upwards and the cold air downwards
g- when a balloon rises up wen being filled with hot air
h- when the ocean circulates and heat is transferred from warm water to cool water
i- when heat is transferred from a bulb to the surrounding air
j- when you cool the radiator of your car using water where water is transferred from the radiator to the water.

5- Radiation: the emission of energy in the form of waves. Examples:
a- the sunlight (ultraviolet radiations of sunlight)
b- x-rays
c- the flame/light of a candle
d- the gamma radiations from the explosion of a star
e- microwaves of a microwave oven
f- the radiations of the mobile phone which are electromagnetic radiations
g- the beam of a laser
h- placing your hand over warm fire
i- emission of alpha particles from decaying uranium
j- the radio waves
8 0
3 years ago
What would happen if we didn't have photosynthesis and cellular respiration?
gayaneshka [121]
1)Without photosynthesis: If we didn't have plants, algae and bacteria  to do the photosynthesis, CO2, a air pollutant wouldn't be converted in to glucose for those organisms and there would be no more Oxygen released to the atmosphere. Less photosynthesis  means less oxygen production and many organisms, like us, would die.
2)Without cellular respiration: Without this process we couldn't convert our food into the energy, ATP, necessary for the cells to function properly. Plus, this process also forms water, and without it, it would be another reason for the death of the cells.
Ultimately, will cause the death of the aerobic organism.

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4 0
4 years ago
Macromolecule Suggested percentage of diet Actual percentage of diet Carbohydrates 45–65% 70% Lipids 20–35% 5% Proteins 10–35% 2
SIZIF [17.4K]
10-35%25% based on the table the decrease of the table is 25%25%.Good Luck.
5 0
3 years ago
Which of the following can be used to address how quickly you must chill a product to reduce the growth of foodborne pathogens i
madam [21]

Answer:

The correct answer is "USDA Appendix B".

Explanation:

The United States Department of Agriculture (USDA) have a series of Guidance Documentation that clarify the obligations that people must follow in order to properly handle agricultural products. The USDA Appendix B entitled "Compliance Guidelines for Cooling Heat-Treated Meat and Poultry Products (Stabilization)", states the procedure that must be followed to chill a product to reduce the growth of foodborne pathogens.

3 0
3 years ago
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