Which scientist first viewed living cells?
a. Robert Hooke
b. Matthias Schleiden
c. Theodor Schwann
d. Anton van Leeuwenhoek
e. August Weismann
D
You might also like to view...
Which of the following effects can occur because of the high surface tension of water?
A) Lakes cannot freeze solid in winter, despite low temperatures. B) A raft spider can walk across the surface of a small pond. C) Organisms can resist temperature changes, although they give off heat due to chemical reactions. D) Sweat can evaporate from the skin, helping to keep people from overheating. E) Water can flow upward from roots to the leaves in plants.
A hydrocarbon skeleton is covalently bonded to an amino group at one end and a carboxyl group at the other end. When placed in water this molecule would function _____
A) only as an acid because of the carboxyl group B) only as a base because of the amino group C) as an acid and a base D) as neither an acid nor a base E) It is impossible to determine how it would function, based on the provided information.
The requirement of cold weather before a particular plant process occurs (e.g., germination) is known as ____.
A. the biological clock B. vernalization C. photoperiodism D. biennial life cycle E. perennial life cycle
Formalin (37% formaldehyde) is used for
A. antisepsis. B. disinfection. C. sterilization. D. sanitization. E. both disinfection and sterilization.