When using the term 'life form' I assume you are speaking of animals, bacteria, etc. Scientists take years to find their desired conclusion because of how the environment tends to change quite frequently (Depending on where the creature lives). The earth is constantly revolving and rotating, which causes changes in the environment. These changes affect the animals behavior, eating habits, and overall chances of survival. A factor that must also be considered is that scientists have to examine these creatures in their natural habitat which can be an issue depending on where they live. For example, if I were to study the behavioral patterns of a Leopard, it would be extremely difficult to do so because the Leopards are specifically keen at camouflaging in their environment. That would make observing its behavioral patterns very frustrating and time consuming. In a way, mother nature is always against us.
(Hope this helps)
Answer:
Este presenta características o dimensiones únicas, es decir, no se parece a ningún otro hueso,debido a esto lo ubicamos en la clasificación de huesos irregulares.
Explanation:
Posición del atlas (se muestra en rojo). El atlas es el nombre que recibe el hueso más alto de toda la columna vertebral, siendo este la primera vértebra cervical (C1).
Explanation:
a platypus is the only mammal to lay eggs
It will have to be Joseph is observing the cool of the reaction to see whether proteins are present
Only RNA uses the base uracil while only DNA contains thymine