Understanding Prefixes and the Word 'Vorous'

The question asks to identify the prefix that means 'all' and correctly combines with the word ending 'vorous'. To answer this, let's first understand what 'vorous' means and then look at the meanings of the given prefixes.

The word ending 'vorous' comes from Latin 'vorare', which means 'to devour' or 'to swallow'. When used in combination with prefixes related to food or type of eating, it indicates an animal that feeds on something.

Analyzing Potential Prefixes for 'Vorous'

Let's examine each prefix provided in the options:

• (a) Mono-: This prefix comes from Greek and means 'one', 'single', or 'alone'. Examples include 'monologue' or 'monorail'. Combining 'mono' with 'vorous' would imply feeding on only one type of food, but 'monovorous' is not a standard English word in this context.
• (b) Pro-: This prefix has various meanings, often related to 'before', 'forward', or 'in favor of'. Examples include 'progress' or 'proponent'. Combining 'pro' with 'vorous' doesn't form a recognized word related to diet or feeding.
• (c) Supra-: This prefix comes from Latin and means 'above' or 'beyond'. Examples include 'supersonic' or 'supraorbital'. Combining 'supra' with 'vorous' doesn't form a recognized word related to diet or feeding.
• (d) Omni-: This prefix comes from Latin 'omnis', meaning 'all' or 'every'. Examples include 'omnipotent' (all-powerful) or 'omnipresent' (present everywhere). Combining 'omni' with 'vorous' creates the word 'omnivorous', which means 'feeding on food of both plant and animal origins', essentially eating 'all' kinds of food.

Identifying the Correct Prefix Meaning 'All'

Based on the analysis of the prefixes, the prefix that means 'all' is 'omni-'. When combined with 'vorous', it forms the word 'omnivorous', which aligns perfectly with the meaning of feeding on 'all' kinds of food (both plants and animals). This is a standard and widely used term in biology.

Therefore, 'omni-' is the prefix meaning 'all' that correctly befits the word 'vorous'.