Vocabulary

• for example: As an illustration or instance.
• grow up: To develop from a child into an adult
• dominant male: The alpha male in a social hierarchy, typically in animal groups.
• without fail: Certainly; always; surely.
• pass on: A polite way of saying 'to die'
• instead of: When one thing is replaced by another
• care for: To want or desire a thing
• to do with: To be about something; concern
• in the middle of: In the central part or point of something.
• tropical fish: A fish that lives in warm, tropical waters, often kept as pets in aquariums.
• start out: To begin your life or career in a particular way.
• move up: To advance to a higher rank or position.
• hatch out: To emerge from an egg.
• found out: To learn or discover something, often after some effort.
• assume: To act in a false manner to mislead others
• critical: Making a negative judgment of something
• aspect: Way something looks or seems to be
• period: Set amount of time during which events take place
• determine: To control exactly how something will be or act
• completely: In every way or as much as possible
• evolve: To develop certain features
• develop: To explain something in steps and in detail
• environment: Natural world in which plants and animals live
• strict: Tending to enforce rules; severe
• hierarchy: Group that manages and controls an organization
• reach: To come to or arrive at a goal or destination
• dramatic: Gripping the attention; causing an effect
• remain: To be left behind; to continue to exist
• pregnant: Carrying your unborn baby inside you
• settle: To make (a child, etc.) feel calm/ready for sleep
• mature: Behaving like an adult
• genetic: Of, relating to, or controlled by genes
• dominant: The strongest; most powerful
• simply: In an easy or clear manner
• labor: To struggle to do something because it's difficult
• grant: To admit an opinion is true but not fully agreeing
• dominance: Having more power, success than others
• produce: Fresh foods such as fruits and vegetables
• fall: Season after summer and before winter; Autumn
• social: Involving activity with people, e.g. in free time
• randomly: With no pattern or clear purpose; by chance
• tropical: Hot and humid; near to the equator
• development: Act or process of growing bigger or more advanced
• bump: To bounce along over a rough surface
• desert: To leave a place for ever; abandon
• colony: Group (bees, etc.) that live in the same place
• bother: To cause problems, concerns or worry for someone
• depend: Be controlled or determined by (someone/something)
• determination: Will to achieve a goal despite difficulties
• genetically: Caused or controlled, or by genes
• spend: To use money to pay for something
• sperm: Cell produced by men and needed for reproduction
• system: Set of organized, planned ideas that work together
• temperature: When you your body heat is above normal
• defend: To protect and explain your position in court
• mate: A friend who you work, live, or go to school with
• chance: The way something happens without planning
• middle: Place that is halfway between two things
• fail: To be unsuccessful in passing a class or exam
• embryo: Tiny plant stored inside a seed
• question: To ask for or try to get information
• grow: To get bigger and more mature; make plants do this
• chromosome: Cell structures that carry the genetic material
• larva: Wormlike young form of some insects