Changes depending on the gravity
The answer is 90 degrees that is what angle nurses inject medication with
Melting of ice and island decreasing in level
D. They help plants get nutrients and water form soill This is called mutualism.
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.
