Answer:
The endosymbiotic theory
Explanation:
Protists are the multicellular organisms which possess characteristics of both the prokaryotes and eukaryotes.
The protist can derive nutrition by either heterotrophic mode or photoautotrophic mode. This variation could exist within the same genus and same species.
This variation could be explained with the endosymbiotic origin of the organisms as some species could engulf the photosynthetic bacteria whereas some could have engulfed the chemosynthetic bacteria.
This can be observed in the green and red algae which depend on a different mode of nutrition belonging to the same group.
Thus, the endosymbiotic theory is correct.
Error is the amount of imprecision or variation in a set of measurements. It is expressed as a percent error. So the statement is true! Hope this helped!
The answers to these questions are the following:
1. uses memory cells to fight off an infection from a pathogen: it is a specific response
2. evident by a sneeze, cough, fever, or other physical symptom: it is a non-specific response
3. recognizes antigens present on pathogens and attacks the pathogen with antibodies: it is a specific response
4. builds immunity to specific diseases that had previously entered the body: it is a specific response
5. does not target specific pathogens: it is a non-specific response
The structure of the male breast is nearly identical to that of the female breast, except that the male breast tissue lacks the specialized lobules, as there is no physiologic need for milk production by the male breast.
The answer should be B) Genetic drift.
Hope this helps!
-Payshence xoxo
