Which of the following statements about arthropods is FALSE?
a. Arthropods have a true coelom
b. Arthropods have an exoskeleton.
c. Arthropods display segmentation.
d. Arthropods have an open circulatory system.
e. Arthropods have an incomplete digestive tract.
e
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The organ system that produces and releases eggs and sperm.
A) Muscular
G) Respiratory
B) Reproductive
H) Skeletal
C) Digestive
I) Nervous
D) Cardiovascular
J) Endocrine
E) Integumentary
K) Lymphatic
F) Urinary
A lens
a. is the amount that an object's image is enlarged. b. is the extent to which detail in an image is preserved during the magnifying process. c. is the degree to which image details stand out against their background. d. focuses light rays emanating from an object to produce an image.
Mutation as a force in genetic diversity serves to
A. increase genetic diversity. B. rapidly change allele frequencies. C. maintain a genetic equilibrium. D. work against selection. E. do none of these.
A normal cell is anchorage-dependent for growth and mortal
a. true b. false