Similarities:
They contain nematocyst (cells that sting)
some are sessil/free swimming
Some corals have a symbiotic relationship with algae, they need to grow in shallow waters so that light can penetrate for the algae to photosynthesize.
Answer: lipids, proteins, carbohydrates, and water
Explanation:
These are the four major nutrients that you can get from food. Hope this helps!
Answer
The worm gets coated with antibodies, which activate other cells in the immune system to secrete chemicals that kill it.
Explanation:
Production of T-helper I cytokines like IFN gamma, IL-2 and IL-18 is highly protective against helminth infection by activating the macrophage intracellular killers. Protection against mucosal eosinophil responses in which antiparasitic chemicals are released. Killing also involves direct cytotoxic mechanisms in which T- cell and NK-cells directly release antiparasitic agents like perforin and granulysin which kill the parasite.
To contract and churn the food to break it down into smaller molecules
Answer: The Hyoid Bone
Explanation: The hyoid bone helps to support the tongue and elevate the larynx when you talk or swallow. It's the only bone of the body that does not articulate with any other bone.
