Because radiation goes a long way. Radiation itself isn't visable but if it's from a nearby star you'll be able to see the star. Radiation keeps moving outwards forever. Things that can sense radiation that you can't see will help you have an idea how far away the source of that radiation is from
Answer:
There can be no conclusion drawn from the debate that whether hereditary and environment are involved in the building of the organism.
Some of the features of the organism are dependent on the environmental factors and some of the factors are related to the hereditary of the organism.
Example: The tail of the rat was cut and the next generation that was born with tail and in this case there is no role of the environmental factors on the mice.
A person has no health issues but gets affected by the nearby environment and is diseased. In this case there is no role of hereditary on the person.
So, there cannot be any conclusion of such topics. Both of the factors are equally important.
Answer:
These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres.
Answer:
interphase:(longest stage in the cell cycle)
g1:initial growth to normal size
s:synthesis of DNA (replication)
g2:growth to 2x the normal size
