A fundamental concept of ecology is that living organisms are both similar to and different from each other and from nonliving things.
Living things are similar in that they rely on many of the same processes to stay alive, yet are different in the ways that these processes are carried out.
Non living things lack certain features of living organisms, such as the ability to maintain a cellular organization, carry out metabolic activity while maintaining internal stability (homeostasis) and pass on hereditary information through reproduction.
Answer:
A. Primary Economic Activities
Explanation:
Answer:
A. The complete journey of one object around another.
Explanation:
Revolution can be defined as the complete journey of one object around another.
This ultimately implies that, the complete movement (motion) of the Earth along a path (an orbit) around the Sun or the Moon around the Earth is referred to as revolution.
Basically, it takes the Earth 365 1/4 days to completely move around the Sun.
Additionally, the earth rotation and revolution gives rise to the following phenomenon;
a. Day and night.
b. Seasons such as summer, winter, autumn, etc.
c. Creation of heat zones and ocean currents
Answer:
3.29ft/mi
Explanation:
The gradient of a river is the slope through which a river flows. It measures the vertical drop in elevation of river to the horizontal distance.
Mathematically;
River gradient = 
Elevation = 1229ft
Horizontal distance = 373miles
River gradient = 
= 3.29ft/mi
