Target cells that are known to be having specific receptor for an antigent or antibody and the main reason why all cells are not target cells for the hormones is that they act as the focus for contact by phagocyte.
Answer:
ATP
Explanation:
ATP is the type of energy needed for active transport to take place.
Answer:
Ecological pyramids are diagrams that are used to show how much energy, the number of organisms, or how much biomass may be found at each trophic level of all the food webs of a community. Note that the autotrophs are always placed at the base of the pyramid.
Explanation:
Answer:
The dependent variable changes in response to the independent variable.
Explanation:
Think of it like cause (independant) and effect (dependant).
Answer:
Periodic selection.
Explanation:
Some bacterial strain has the ability to develop the resistance against the particular drug. This helps the bacteria to survive against the adverse environmental conditions.
The periodic selection may be defined as the natural selection that selects some strains of the bacteria that can survive in the particular environment. The periodic selection also favors the adaptive mutation that might occur due to the recombination in bacteria and removes the non selective species. The information given in the question provides the example of periodic selection.
Thus, the answer is periodic selection.