________ improved the original light microscope in the late 1600s, allowing the visualization of ________
A) Theodor Schwann; the internal structures of cells, such as ribosomes, nuclei, and golgi bodies
B) Robert Hooke; bacteria and viruses
C) Antonie van Leeuwenhoek; sperm cells, bacteria, algae, and other protists
D) Robert Brown; cell structures using fluorescent antibodies
E) Rudolf Virchow; collagen and muscle cells
Answer: C
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He hypothesizes, however, that he can introduce a transposon from another plant species. Why might this be possible?
_______ are characterized by having a micronucleus and a macronucleus
a. Euglenoids b. Ciliates c. Diplomonads d. Amoebozoans e. Actinopods
Suppose a plant has a unique photosynthetic pigment and the leaves of this plant appear to be reddish yellow. What wavelengths of visible light are absorbed by this pigment?
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1.5,000 2.10,000 3.50,000 4.40,000 5.100,000