IELTS学术词汇 (分数6-7) - Biology

a substance that all living organisms produce that brings about a chemical reaction without being altered itself

a thin sheet of tissue that separates or covers the inner parts of an organism

a group of cells in the body of living things, forming their different parts

a junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter

the genetic makeup of an organism, determined by the combination of genes inherited from its parents

a type of cell division that creates reproductive cells with half the usual number of chromosomes

a type of cell division that results in the formation of two daughter cells, each having the same number of chromosomes as the parent cell

the system of glands and organs that produce and release hormones into the bloodstream, regulating various physiological functions and maintaining homeostasis

a gland that secretes substances, such as enzymes or mucus, through ducts that lead to the external environment or a body cavity, rather than directly into the bloodstream

a steroid hormone that the body produces and is used in medicine to help cure skin diseases

something that triggers a reaction in various areas like psychology or physiology

a small, membrane-bound sac within a cell, involved in the transport, storage, or release of substances