TWO-CELLED EMBRYO AFTER THE FIRST CLEAVAGE OF SNAIL
TRICHURIS TRICHURIA OVA
TOUCH IMPRESSION SMEAR OF THE LIVER OF A RABBIT
TINY SNAIL
THE RETINA OF A MOUSE
T-CELL ACTIVATION IN MOUSE LYMPH NODES.
TARDIGRADE
TARDIGRADE OR WATER BEAR
SQUID TENTACLE
SQUID EMBRYO
SPINY WATER FLEAS
SHEEP NEMATODE WORM SHEDDING ITS SHEATH
SHARK SKIN
SECTIONS OF LIVER FROM A BEARDED SEAL WITH A HEAVY FLUKE INFECTION
SECTION OF RAT INTESTINE
SECTION OF MOUSE INTESTINE