During Mesozoic, the __________ Became the First Reptiles to Invade

question 22

Multiple Choice

During Mesozoic, the __________ became the first reptiles to invade the marine realm.

• A) placodonts
• B) nothosaurs
• C) plesiosaurs
• D) ichthyosaurs

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Definitions:

Cl-Cl Bond

A covalent bond between two chlorine atoms, as found in the diatomic chlorine molecule (Cl2).

Polar Covalent

A type of chemical bond where electrons are unequally shared between atoms, leading to a distribution of charge.

N-Br Bond

A chemical bond between nitrogen and bromine atoms.

Electronegativity Difference

This term describes the difference in electronegativity values between two atoms bonded together, influencing the bond type; ranging from covalent to ionic.