<span>because they are the ones able to harness free energy such as the sun and store it in sugars and other biological chemicals such as fats and proteins. other creature like us eat them to gain our energy so without them we would all starve</span>
B, if it has already been proven multiple time that something doesn't work why waste time doing the exact same thing and if you learn a bit more about the experiment it could change what you want to do.
B) Melting ice would increase the growing season because the temperatures would increase, animals living in certain areas would migrate to others, and certain species that lived on the ice would die.
Answer:
It can exchange both matter and energy, exchange energy but not matter, Isolated systems can exchange neither energy nor matter
This happens at the TELOPHASE STAGE. Mitosis is divided into four distinct stages. At the telophase stage, the chromosomal movement stops, then identical set of chromosomes located at opposite poles uncoil and form thread-like chromatin form. New nuclear envelope is then formed around each chromatin mass. Formation of new nucleoli will be observed within nuclei and spindle will deteriorate and disappear.