Explanation

Tulips, lilies, daffodils, and onions reproduce through bulbs, which are underground storage organs.

Bulbs store food and help the plant survive unfavorable conditions.

Explanation

The SI unit of pressure is Pascal (represented as Pa) 

in SI base units, one kilogram per meter per second squared (N/m2 or kg m-1s-2)

Definition of Pressure: Pressure can be defined as the force acting per unit area.

***

The SI unit of energy/work is the joule (J)

Explanation

 Morphology:

This field studies the structure of words, including their parts of speech, prefixes, suffixes, and how they are formed.

Syntax:

This field examines how words are put together to form sentences

Etymology:

This field investigates the origin and historical development of words

Explanation

 "Colony" is the correct collective noun for ants

While "colony" is the most common term, "army" 

Explanation

Galvanized iron sheets have a coating of zinc. 

Galvanization is a process where a layer of zinc is applied to iron or steel to protect it from rusting, making "galvanized iron" essentially iron coated with zinc