Adults have stem cells because they are needed to repair certain tissues in the body such as in the muscles, bone marrow, skin, teeth, heart, and liver, to name a few. Thus, they can develop into many different cell types and function to replace older and damaged tissues.
Answer:
The best answer would be:
C. The scientific method was followed because the experiment tested the hypothesis and produced reliable results.
Explanation:
The purpose of an experiment is to test the hypothesis. It is true that having an experimental group and a control group was following the scientific method but the data gathering and documentation was also part of the scientific method. So the best answer would be C.
Writing the question is not necessary. It is merely part of forming a hypothesis. The scientific method does not require many scientists to perform the experiment, but it does require that the experiment be repeatable, so it can be tested again.
Weight of the balloon = 2.0 g
Six weights each of mass 30.0 g is added to the balloon.
Total mass of the balloon = 2.0 g + 6*30.0 g = 182 g
Density of salt water = 1.02 g/mL
Calculating the volume from mass and density:
Converting the volume from mL to cubic cm:
Assuming the balloon to be a sphere,
Volume of the sphere = 
π
r = 3.49 cm
Radius of the balloon = 3.49 cm
Diameter of the balloon = 2 r = 2*3.49 cm = 6.98cm
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c.
The energy source of tsunami waves is much greater
Explanation:
The major difference between a tsunami waves and ripple waves is that the energy source of tsunami waves is much greater compared to ripple waves.
Tsunami waves carry more energy compared to just a disturbance resulting from a ripple caused by dropping of a stone.
- A tsunami is a large water wave caused by the displacement of water usually by an earthquake.
- An earthquake is a releases elastic waves suddenly within the earth crust.
- Water bodies at the epicenter are disturbed sending huge volume of energetic water loads to the land.
- A ripple is just a product of a stone dropped inside the water.
Tsunamis are more energetic compared to ripples in water.
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