________ are organelles in the cells concentrated around the mouth and tentacles of cnidarians and contain toxins to penetrate and stun prey.
a. Spicules
b. Nematodes
c. Nematocysts
d. Polyps
c. Nematocysts
Nematocysts are organelles in the cells concentrated around the mouth and tentacles of cnidarians and contain toxins to penetrate and stun prey.
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The decline of the eugenics movement in the U.S. in the early 20th century resulted from ____
a. breakthroughs in genetic technology b. violent protests by the medical community c. the ability to manipulate gene expression d. social outrage at the number of deaths caused by botched sterilizations e. its misuse for social and political purposes by the Nazis
In Frits Went's coleoptile experiment,what was the most likely phytohormone transported from the coleoptile tip into the agar block?
(a) Brassinosteroid (b) Gibberellic acid (c) Ethylene (d) Auxin (e) Abscisic acids
The allergic response is primarily mediated by ________ antibodies.
A. IgA B. IgM C. IgE D. IgG E. IgD
The ________, or thrombocytes, play a vital role in clotting
Fill in the blank(s) with correct word