Polyploidy means having
A. an abnormal number of two or more individual chromosomes.
B. three or more sets of chromosomes.
C. only one set of chromosomes.
D. three or more chromosomes.
E. an abnormal number of one particular chromosome.
B. three or more sets of chromosomes.
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Diagram and label the internal structure of a chloroplast. Briefly describe the function of each structure
you labeled. What will be an ideal response?
Which statement about the Malpighian tubules is FALSE?
a. Water and some solutes are transported into the Malpighian tubules via active transport. b. The Malpighian tubules empty into the gut of the insect. c. Water, some salts, and other solutes are reabsorbed into the hemolymph in the rectum. d. The excretory system of an insect may contain up to several hundred Malpighian tubules. e. The blind ends of the Malpighian tubules are bathed in hemolymph
All seed plants are described as ________ because their sporophytes have two types of sporangia that produce sexually different spores.
A. Heterosporous B. Polypoids C. Homosporous D. Monoecious E. Dioecious
Which of the following is missing in parasitic flatworms compared to the free-living flatworms?
A. eyespots B. excretory system C. testes D. digestive tract