Who was the first person to describe living single cells?
A) Leeuwenhoek
B) Hooke
C) Schleiden
D) Schwann
E) Virchow
Ans: A) Leeuwenhoek
You might also like to view...
A protozoan cyst differs from a helminth egg in that
A. the chromosome is free in the cytoplasm of a cyst, but enclosed in a nucleus in an egg. B. a cyst is metabolically active, but an egg is not. C. the cyst can germinate to form the organism but the egg must be fertilized. D. cysts have a uniform structure, but eggs have a wide variety of morphologies.
In order to transfer gene a to an F- cell, the sex pilus must be in place for at least ____ minutes
a. 0 b. 6 c. 10 d. 14 e. 25
List and define two types of chemical bonds.
What will be an ideal response?
In the human pulmonary circuit, blood passes through which of the following?
A. Liver B. Limbs C. Lungs D. Digestive organs E. Brain