Which class of animals has hollow bones?

The specialized muscle that mammals possess to help with breathing is the:

Animals that develop an anus first in embryonic development are called:

Which ecosystem has a higher richness?

Which ecosystem has a higher diversity?

Muscles and organs like the liver and heart develop from which layer of embryonic tissue?

The part of the kelp labelled as #4 is the

Fungi are made up of long strands called:

Fungi are heterotrophs. What word best describes their role in ecosystem food chains?

Single celled creatures that live in structures made of silica are called:

Dinoflagellates and Diatoms belong to the Kingdom

Algae are broken up by groups according to:

The organelle that helps produces proteins inside cells is the:

Which organelles are not found in plant cells?