Why are modern light microscopes better than the ones Leeuwenhoek used?
A. Modern microscopes have a fivefold better resolution.
B. Modern microscopes are compound instead of simple.
C. Modern microscopes have lenses with smaller numerical apertures.
D. Modern lenses are made of prisms.
E. Modern microscopes are compound and have five-fold better resolution.
Answer: E
You might also like to view...
The Danish physician Hans Christian Gram
A. developed the Gram-stain technique B. devised the metric system of weights (milligrams, grams, kilograms) C. developed the procedures for determining whether a particular organism causes a specific disease D. developed both the Gram stain and the method of determining whether a particular organism causes a specific disease E. none of the other options presented
In animal cells, what structure is homologous to plasmodesmata?
a. desmosome b. tight junction c. gap junction d. proteoglycan
Which ocean zone stretches from the intertidal zone to approximately 200m deep?
a. oceanic zone b. abyssal zone c. neritic zone d. aphotic zone
Which animals develop with an organ made from maternal and embryonic tissues that allows the bloodstreams to transfer materials without mixing?
a. nonbird reptiles b. birds c. monotremes d. marsupials e. placentals