In natural communities, some feedback mechanisms operate whenever populations change in size. They are
1.density-dependent factors.
2.density-independent factors.
3.always within the individuals of the community.
4.always outside the individuals of the community.
5.none of the choices
1
Biology & Microbiology
You might also like to view...
How many alleles are there for the ABO blood group?
A. 1 B. 2 C. 3 D. 4 E. 6
Biology & Microbiology
A cell membrane is a lipid _________ because the phospholipids line up in TWO ROWS to try and keep their ______________ tails away from water.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Describe the environmental water cycle.
What will be an ideal response?
Biology & Microbiology
The methylene blue reductase test is not specific for coliforms.
A) True B) False
Biology & Microbiology