Explanation:
The basic difference between Ecosystem and Community is that Ecosystem consists of various communities which include living as well as non–living components interacting with each other, whereas interaction of different individuals of populations of different species living in a particular geographical area is called Community. The community consists of only biotic factors only.
Answer:
Mass
Explanation:
The measure of the pull of gravity on an object is called weight. For an object to have weight it must have mass.
I think it’s covalent bond
Answer:
c) symbiotic
Explanation:
-There is a symbiotic relationship between the legumes which contains root nodules and Rhizobium bacteria.
-Rhizobia live in the soil.
-When there is limited soil nitrogen, legumes in symbiotic relationship release flavanoids which sends signal to rhizobia that the plant needs symbiotic bacteria.
-Rhizobia produces ammonia from the atmospheric nitrogen and assists the plant's growth.
If the allele frequency of a gene for brown fur is increasing from 15 to 25 percent, the population of the bears is evolving.