Vocabulary

• at a time: Separately; one by one
• in turn: One after the other in a sequence or rotation.
• at least: As a minimum
• instead of: When one thing is replaced by another
• in return: As a reciprocal action or gesture; in exchange or repayment.
• on earth: Used to emphasize a question expressing surprise or anger.
• move around: To change position or location; to go from place to place.
• vulnerable: Being open to attack or damage
• ultimately: Done or considered as the final and most important
• individual: Single person, looked at separately from others
• process: To organize and use data in a computer
• immune: Having a special protection from, e.g. the law
• extremely: In a way that is much more than usual or expected
• technique: Way of doing by using special knowledge or skill
• average: Total of numbers divided by the number of items
• impressive: Causing admiration or respect; grand or expensive
• disease: Illness that affects a person, animal, or plant
• current: Electricity flowing through wires
• stress: To emphasize one or more parts of a word, sentence
• hormone: Chemical produced by the body to control functions
• increase: To make or become larger in size or amount
• ordinary: Normal or usual
• reach: To come to or arrive at a goal or destination
• tiny: Very, very small
• physically: In a manner related to the body
• rough: Causing or involving violence, force, and harm
• primary: Most important, most basic or essential
• rip: To tear or split roughly or cause to tear or split
• compare: To consider how similar and different things are
• giant: Tall, large, and powerful human-like creatures
• swap: To exchange goods without spending money; trade
• survive: To continue to live despite illness or trouble
• couple: To join something to something else
• span: Distance between two supports of a bridge
• deter: To stop people doing a thing; stop from happening
• internal: Being or happening in the body
• testosterone: Natural chemical responsible for the male sex
• single: One run in cricket or a hit baseball
• offer: Price you say you are willing to pay for something
• sperm: Cell produced by men and needed for reproduction
• system: Set of organized, planned ideas that work together
• explode: To express an emotion in a sudden and loud way
• continue: To do something without stopping, or after pausing
• act: To behave in a certain way
• catch: Amount of something that has been caught
• tract: A system of body parts or organs that has a particular function (e.g., digestive tract).
• portable: Light enough to be moved around with ease
• mate: A friend who you work, live, or go to school with
• parasite: Small animal or plant living off a bigger one
• chance: The way something happens without planning
• head: To hit a ball with your head in a game
• turn: To become (a particular age)
• find: To become aware of something that is happening
• quick: Using very little time; moving far in little time
• make: To arrange or prepare something e.g. dinner
• deep: Complex and important
• reproductive: Concerning the process of making children
• penis: Male organ for copulation and urination
• overdrive: Extra gear on a vehicle that allows more power
• ankle: Region or joint between the foot and the leg
• erect: Standing straight up
• reproduction: Act or process of producing a copy of something
• suicidal: Feeling you may kill yourself; depressed
• neighbor: Person who lives, or is near, you
• barnacle: Marine crustaceans that live on rocks
• honeybee: Bee often domesticated for the honey it produces