Answer of Q.1. is:
C] Ferns
While, Answer of Q.2 is ;
B] Mollusks
Covalent Bonds: A Hydrogen Example. A covalent bond is a chemical bond that comes from the sharing of one or more electron pairs between two atoms. Hydrogen is an example of an extremely simple covalent compound. A hydrogen example.
Explanation:
cells must be attached to a substrate or extracellular matrix of a tissue.
Answer:
Gray (or Grey) Matter-the darker tissue of the brain and spinal cord, consisting mainly of nerve cell bodies and branching dendrites.
White Matter-he paler tissue of the brain and spinal cord, consisting mainly of nerve fibers with their myelin sheaths.
Explanation:
