Answer:
C
Explanation:
Even though it is still a debate "c" is a virus and viruses are exceptions to the cell theory
Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.
Explanation:
From Google
Answer:
The work of Liebig
.
Explanation:
Liebig's works, generally associated with agriculture, affirm that the development of a living being and its population is limited by the factors provided in the environment in which it lives, that is, for living organisms to survive, it is necessary that the biotic and abiotic factors in an environment are presented in a limiting way, so that the growth of this population is controlled. As a result, these works claim that reproduction in a species will decline once it has reached a limiting factor or "catastrophe"
Answer: <u><em>Crop plants </em></u>with better yields. ornamental plants with particular flower shapes and colours. farm animals that produce more, better quality meat or wool. dogs with particular physiques and temperaments, suited to do jobs like herd sheep or collect pheasants.
Explanation: hope it helped :)
