The right answer is to the question is D.Sr
A model organism is a species that has been widely studied to understand a particular biological phenomena, normally used because they are easy to breed and maintain in a laboratory setting and has certain experimental advantage.
The criteria that Thomas hunt Morgan was looking for include; the model organism should be small in size, easy to keep in the laboratory and also able to produce large number of off springs in a short time.
A plant leans toward a light source.
Oxygen, water, some type of resources to build, and food to eat
1. Eukrayotes cells contain membrane-bound organelles, such as the nucleus, while prokaryotes cells do not.
2. Eukaryotes are often multicellular whilst prokaryotes are unicellular. Although there are some exceptions –unicellular eukaryotes include amoebas, paramecium, yeast.
hope this helps!
