Explanation:
The statistical study of populations and how they change over time is called demography. Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume.
Answer:
False
Explanation:
Scientist believe that the primitive atmosphere lacked free oxygen. Oxygen is a highly reactive molecule that would have made difficult for complex macromolecules to appear and then create life. Rocks from the precambrian period support this theory.
Anaerobic cells appeared first, then photosynthesis appeared filling the atmosphere with oxygen and the aerobic organism develop cellular respiration to obtain energy, a process more efficient than anaerobic respiration.
Answer:
The decrease of a certain good source.
False
It occurs in the Calvin Cycle of photosynthesis which is the dark reaction.
The lumbar nerves exit the intervertebral foramen under the pedicle of the same numbered vertebral body.
lumbar sacral: intervertebral
coccygeal: vertebral
