Afrog lays thousands of eggs because many eggs die this is a behavior is an example of

Over production

Explanation:

Frogs are very carefree parents and thus unlike other adult species of animals who take care of their young ones for making them enable to survive, frogs do not look after their young ones and this is the reason that out of three to four thousands eggs produced at a time by female only 4 to 5 eggs survive till adulthood.  

In order to make the cycle moving from one generation to other, frogs overproduce eggs so that at least a few of all survive till adult hood and reproduce further.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck