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The cleaner wrasse swims over the entire body of its customer, picking parasites
from the scales and even going into the mouth and gills of the fish to remove bits
of food or other debris. If a fish has a wound, the cleaner wrasse will remove all ...
It therefore has a greater chance of encountering wave-borne food which it then
transports to its mouth along mucus-covered grooves. ♢ What is required for a
filter-feeding animal to orient itself toward prevailing currents? ♢ Why don't all
Leading a sessile (stationary) life in the tide pools, this member of the phylum
Cnidaria stings its small prey and draws them into its central mouth for digestion.
The green color comes from the presence of single-celled green algae which find
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I purchased all three books in this set and taught a short course to a small group of high school kids. We had a great time with this course! We did 10 experiments and held very intense all-day ... Read full review