CHEMISTRY MIDDLE SCHOOL

Groups of cells that work together to do a specific job

Answers

Answer 1
Answer: Many cells = tissue
Many tissues = organ
Many organs = organ system
Many organ systems = organism
Answer 2
Answer: group of cells = tissue
group of tissues = organ
many organs = organ system
organ system = body/organism
                                       
      Systems

Circulatory System    
Digestive System     
Endocrine System                                
Lymphatic System       
Muscular System     
Nervous System                                
Reproductive System     
Respiratory System     
Skeletal System 
Urinary System     
Integumentary System

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what might happen in a tropical rainforest biome if the area received very little rain for an extended period of time

Answers

plants and animals would die

Answer:

The forest will become very dry and things that need water will die

Examples of energy being used around your class room

Answers

The statement, that describes the energy being used around your class room is "mechanical energy, heat energy, light energy and sound energy."

What is energy?

Energy is defined by scientists as the ability to perform tasks. Energy is described as the "capacity to accomplish work, which is the ability to apply a force that causes an object to move." It can be potential, kinetic, thermal, electrical, chemical, nuclear, or other. Computers, smart boards, overhead projection machines, lighting, and fans are used in the classroom.

Electrical energy is converted into mechanical energy by an electric fan.

The transfer of charge through the filament in the tubelight heats it up and causes it to glow. The tubelight transforms electrical energy to heat energy and light energy in this manner. When you switch on your computer, electrical energy is converted into sound and light energy. When the computer is turned on, electrical energy is converted to thermal energy.

Hence the correct answer is mechanical energy, heat energy, light energy and sound energy.

Learn more about energy here

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In the average classroom. You have AC and DC energy that flows through the wires and powers your computers, phones, projector (if you have one), the light-bulbs in the ceiling or around the room. Their is potential energy when an object is at rest for example your pencil or desk, There is Kinetic energy when objects are moving for example if you walk around or something is rolling around. You yourself is an example of energy.

A bobsled has a momentum of 4000 0 kg* m/s to the south. Friction on the track reduces its momentum to 500 kg* m/s to the south. What impulse is applied to the bobsled by the friction? A. 6500 kg* m/s north

OB. 1500 kg* m/s south O

C. 6500 kg* m/s south

O 1500 kg* m/s north

Answers

Answer: 1500 kg•m/s north

Explanation:

A PE X
The correct answer is c

How long is a red blood cell

Answers

I suspect this question should read "How long does a red blood cell live." A red blood cell lives for between 100 and 120 days. It takes 7 days for a new red blood cell to develop from stem cells. Stem cells are similar to base cells. They can also be seen as a general template from which specialized cells are made. Stem cells can be taken from a newborn baby's umbilical chord or extracted from an adult blood donor's blood.This 

PLEASE HELP!!!A student mixed two clear liquids together in a beaker and a solid precipitate formed. His data is shown below:
Liquid reactant A: 10 g
Liquid reactant B: 17 g
Beaker+Solid product: 32 g

What is the mass of the beaker?
a. 5 g
b. 10 g
c. 15 g
d. 17 g
e. 32 g

Answers

This might be right. Im not quite sure. This is what my 5th grade science teacher told me. 'Look at the 2 LR's and add them together. Then look at the total amount which is 32. When you add the 2 LR's you get 17. So subtract 17 from 32 and you get 15. So: C:15 is your answer." (LR's stands for liquid reactants)

10+17=17

Total amount is 32

32-17=15

15 is you mass

Hope this Helps

Its 5g i took the quick check

When a warm air mass is caught between two cooler air masses and the thicker cold air masses move underneath the thinner warm air mass and push it upward is what type of weather front?

Answers

An occluded front forms when a warm air mass is caught between two cooler air masses. The warm air mass is cut ofl or occluded' from the ground. The occluded warm front may cause clouds and precipitation. A swirling center of low air pressure is called a cyclone.
When a warm air mass is caught between two cooler air masses and the thicker cold air masses move underneath the thinner warm air mass and push it upward. Occluded front symbol – The directions that the bumps face is the direction the front is moving.
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