One of the two major distinguishing characteristics of mollusks is

a. the presence of three body regions.
b. the mantle.
c. segmentation of the body.
d. jointed appendages.


d

Biology & Microbiology

You might also like to view...

Which of the following is diagnosed by detection of antibodies against the causative agent?

A) nongonococcal urethritis B) gonorrhea C) syphilis D) lymphogranuloma venereum E) candidiasis

Biology & Microbiology

Embryonic plants are nourished by nutrients in endosperm and the ____, but not by nutrients in fruits

a. cotyledons b. seed coat c. germ d. bran e. ovary wall

Biology & Microbiology

Competition between species is called ____________ competition. 

A. interspecific B. exploitative C. interference D. fundamental E. intraspecific

Biology & Microbiology

Meningitis may be diagnosed by analyzing a sample of

a. brain tissue. b. CSF. c. blood. d. spinal cord. e. meninges.

Biology & Microbiology