Treating sea urchin eggs with hypertonic seawater or subjecting them to other stimuli causes them to develop without the presence of sperm,a phenomenon called
A) isogamy.
B) polyspermy.
C) artificial insemination.
D) artificial parthenogenesis.
E) fertilization sensitivity.
Correct Answer:
Verified
Q1: Arrow worm reproduction and development involves
A)separate male
Q3: Arrow-worms feed
A)on plankton and small fish.
B)by retracting
Q4: Within basic research,sea urchins have been a
Q5: The ossicles are penetrated by a meshwork
Q6: Pedicellariae are
A)larval sea stars.
B)the mouth-like openings into
Q7: The Chaetognaths
A)have radial symmetry.
B)feed on clams.
C)are small
Q8: The common name for chaetognaths is
A)arrow worms.
B)acorn
Q9: Tube feet run along the _ groove
Q10: Arrow worm anatomy
A)lacks any coelom.
B)lacks a complete
Q11: The most active of all echinoderms are
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