Which of the following characteristics is shared by echinoderms and chordates?
a. Radial symmetry
b. Dorsal hollow nerve cord
c. Deuterostome development
d. Pharyngeal gill slits
e. Spiral determinate cleavage
Ans: c. Deuterostome development
You might also like to view...
In Yellowstone National Park, hot springs can reach temperatures of 205°F (96°C). Despite these high temperatures, Aquifex bacteria flourish. How might you classify Aquifex bacteria?
A) slime molds B) extremophiles C) amoebas D) algae
During the bacteriophage lysogenic cycle, __________.
a. phage DNA is inserted into the host chromosome b. no attachment occurs c. the host cell lyses, releasing new virions d. the burst time is shortened e. new phage DNA is synthesized
Which of the following is an example of an exotoxin?
A) neurotoxin B) coagulase C) lipid A D) streptokinase E) collagenase
__________ a sedative drug that when used during pregnancy can cause severe developmental damage to a fetus
Fill in the blank(s) with the appropriate word(s)