A. The only difference in the shown diagram is the temperature.
In setup 1, the temperature is 20 degree and in the setup 2, the temperature is 15 degree.
So, the scientists must be studying the effect of temperature in this controlled experiment, where temperature is variable.
The habitat of the lily plant is tropical, which have a mean temperature of 18 degree Celsius. So, the scientist must be studying the effect of low temperature on lily.
The possible hypothesis could be, The lily could survive in slightly lower temperature, if proper amount of light and other nutrients are available.
B. The replication of the experiment is very important to see the validity of the result obtained, it also reduces the variability in result and avoid any preset ideas.
Well, nitrogen is the gas that makes up 78% of the earth's atmosphere.
I would guess its in the air that we breathe. I am not really sure. Just basing this answer off of research.
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor
Answer:
Various suggestions are brought to light about recycling, energy conservation, increasing plant and tree growth, save water, respect nature, reduce toxins in the air, keep the environment clean, reduce air pollution, planting trees and flowers to increase oxygen and love and respect towards all animals who inhabit the ...
Ten Simple Things You Can Do to Help Protect the Earth
Reduce, reuse, and recycle. Cut down on what you throw away. ...
Volunteer. Volunteer for cleanups in your community. ...
Educate. ...
Conserve water. ...
Choose sustainable. ...
Shop wisely. ...
Use long-lasting light bulbs. ...
Plant a tree.
Hope it helps u
FOLLOW MY ACCOUNT PLS PLS