The famous fossil “Lucy” was the skeleton of a young female found in Ethiopia in 1974.  Lucy was approximately 3.5 million years old and a specimen of 

Name the minute structures located at the base of starfish/sea star spines that help to free the surface of debris and other foreign materials.

In Mollusca, which structure is responsible for secreting and lining the shell of the animal? 

This Mollusk belongs to class

Rotifers feature all the following features except

Limulus Amoebocyte Lysate (LAL) is used to identify bacterial contamination in vaccines and injectable drugs.  This compound is extracted from ______

Cephalization is most commonly associated with bilateral symmetry.  Cephalization means that 

Concepts Used: if/else, prompt(), alert(), modulus operator % Prompt:Ask the user to enter a number. Tell them if the number is even or odd.

Identify the tissue.    _______

Identify the region of the body indicated by the black arrow.   _______