________ are characterized by having a pseudocoelom

A) Chordates
B) Roundworms
C) Arthropods
D) Annelids
E) Cnidarians


B

Biology & Microbiology

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Somites become

a. bones and skeletal muscles of the neck and trunk. b. bones and skeletal muscles of the upper appendages. c. bones and skeletal muscles of the lower appendages. d. cranial cavity. e. gills.

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________ are positively charged particles in the soil that attract anions

Fill in the blank(s) with correct word

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What is Entamoeba's portal of entry?

A) Contaminated food or drinking water B) Contaminated swimming areas-lakes, ponds

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Four elements make up more than 96% of the mass of most living organisms. Which of the following

is NOT one of those four elements?

a. sodium b. carbon c. oxygen d. nitrogen e. hydrogen

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