The ciliated "wheel organ" on the rotifers that aids in collecting food is called the:

The energy needs of a human population are not affected by

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?