<span>the microscope that Anton van Leeuwenhoek use to observe single-celled organisms is : a. simple microscope, which is the type of microscope that only has one lens.
Anton van leeuwenhoek conducted his studies in the 1600s. During that time period, we haven't developed any type of high-end microscope that exist today</span>
Idk bruh. Is it something that does something else and yeah
Answer:
D
Explanation:
Gene pool is the total genetic diversity within a population or species