Question

snails
elodea
sprigs
on
off
a
b
c
d
the next day mrs. campbell brings in snails, water weeds, and racks of test tubes. \your job is to
investigate which gases are produced by plants and snails, both in the light and in the dark. we
will start tomorrow.\
what do you think will happen for
snails?
in light, snails will produce
carbon dioxide and use up
oxygen
in the dark, snails will produce
and use up
oxygen
carbon dioxide

Explanation:

Snails are animals. Animals, whether in light or dark, carry out cellular respiration. The general formula for cellular respiration is \(C_6H_{12}O_6+6O_2
ightarrow6CO_2 + 6H_2O+\text{energy}\). So, in both light and dark conditions, snails will produce carbon dioxide (\(CO_2\)) and use up oxygen (\(O_2\)).

Answer:

In the dark, snails will produce carbon dioxide and use up oxygen.