La notación científica es una forma muy conveniente para escribir números pequeños o grandes y hacer cálculos con ellos. También transmite rápidamente dos propiedades de una medida que son útiles para los científicos, las cifras significativas y orden de magnitud.
A biological system is a complex network of biologically relevant entities. ... Examples of biological systems at the macro scale are populations of organisms. On the organ and tissue scale in mammals and other animals, examples include the circulatory system, the respiratory system, and the nervous system. source: google
Feces are deposited on the ground, and the bacteria in the soil breaks it down, and uses the nutrients
us evolving into humanoids but you can find this answer on a science website
The answer is b. if a trait makes them live, it will be passed on
