Which of the following is not a function of the complete digestive tract?
a. Food enters and wastes leaves through the same opening
b. Mechanically moves digested material to the next segment.
c. Breaks down food mechanically.
d. Absorption of digested material through the lining of the gut.
e. Secretion of digestive enzymes.
a
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Competitive advantages for cyanobacteria in the aquatic environment include ________.
A. the ability of many to fix nitrogen B. the production of hydroxamates to bind iron C. the production of toxins to resist predation D. All of the choices are correct.
Characterize the stamen of a flower
What will be an ideal response?
Red imported fire ants (RIFAs) disrupt natural communities by ____
a. congregating inside electrical equipment b. competing with native ant populations c. stinging humans with deadly venom d. disrupting pasture land e. killing Texas horned lizards
What does the word gymnosperm mean?
a. covered seed b. covered sperm c. active sperm d. naked seed