Exam: Cambridge English: B2 First (FCE)

Definition: Not able to do anything to help oneself; feeling powerless or without support.

Example: After the accident, she felt helpless and didn't know what to do next.

Definition: Having the shape of half a sphere.

Example: The dome of the building is hemispherical, giving it a unique appearance.

Definition: Describing plants that are green and leafy, typically without woody stems, and often living for just one growing season.

Example: The garden was filled with herbaceous plants that added vibrant colors and textures.

Definition: A collection of dried plants that are organized and labeled for scientific study, or a place where such a collection is stored.

Example: The university's herbarium contains thousands of plant specimens from around the world.

Definition: A chemical that is used to kill unwanted plants, especially weeds.

Example: Farmers often use herbicide to keep their fields free of weeds.

Definition: The process by which traits and characteristics are passed from parents to their children through genes.

Example: Heredity plays a significant role in determining physical traits like eye color and height.

Definition: Not sure or uncertain about something, often causing a delay in making a decision or taking action.

Example: She was hesitant to speak up in the meeting because she wasn't sure if her idea was good.

Definition: To pause before doing something because you are unsure or uncertain.

Example: She hesitated before answering the question.

Definition: In a way that shows uncertainty or indecision before acting or speaking.

Example: She spoke hesitatingly, unsure of how her words would be received.

Definition: Relating to a number system that uses sixteen as its base, which includes the digits 0-9 and the letters A-F to represent values.

Example: In programming, colors are often represented in hexadecimal format.

Definition: A numeral system that uses sixteen distinct symbols, typically the digits 0-9 and the letters A-F, to represent values.

Example: In programming, colors are often represented in hexadecimal format.