They must have the same number of protons, but a different number of neutrons.
Answer:
The law of conservation of mass states that the total amount of mass remains constant in a system. In ecology, this means that when an organism is eaten, its mass is conserved. Some of the organism’s mass is used to make new proteins, and some of it is passed as waste in the form of urine or feces.
Explanation:
Flatworms has the least complex body plan
Answer:
outside the cell..........
Answer:
16grass/m²
Explanation:
Given parameters:
Number of grasses in quadrat = 4
Area of the square = 0.25m²
Unknown:
Population density = ?
Solution:
Population density is the number of organisms per given area;
Population density =
Population density = = 16grass/m²