Which of the following can cause a decrease in dissolved oxygen in the water ? a. a small population of fish
b. a large number of plants
c. excessive plant debris
d. lack of animal life

Whose work is most likely to be part-time and at several locations? а. physical therapistb. sports physicianc nutritionistd group fitness instructor

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.