Answer:
Stinging cell, nematocysts.
Explanation:
Corals have tentacles present near the oral opening. The tentacles comprise cells called stinging cells. These cells contain nematocysts used by corals to sting the prey and stun them using the tentacles. These stinging cells present near the mouth which contains nematocysts that is an organelle that produces toxic substances used by the coral to catch their prey.
Answer:
C. Theories have been confirmed through tests; hypotheses haven't.
Hope this helps!!
The answer would be D.) convex
The speed of the mouse is 11 ft/s
Answer is: 15,21 liters of nitrogen is needed.
Chemical reaction: N₂ + 3H₂ ⇄ 2NH₃.
V(H₂) = 45,0 L.
V(N₂) = ?
n(H₂) = V(H₂) ÷ Vm.
n(H₂) = 45 L ÷ 22,4 L/mol
n(H₂) = 2,01 mol.
from chemical reaction: n(N₂) : n(H₂) = 1 : 3.
n(N₂) = 0,67 mol.
V(N₂) = 0,67 mol · 22,4 L/mol.
V(N₂) = 15,21 L.