A type of free-swimming larva found in some invertebrates, characterized by a band of cilia around its body used for…

A term used to describe an early human or ape-like species, often referring to cave dwellers or archaic humans.

Relating to feeding or nutrition, typically used to describe the position of an organism within a food chain.

The position an organism occupies in a food chain, defined by the number of energy transfers from primary producers to…

Cells forming the outer layer of the blastocyst in mammals, which contribute to the formation of the placenta and provide…

A hormone that stimulates the release of other hormones from a target gland, such as thyroid-stimulating hormone (TSH) from the…

A dense, warm, and wet forest found in tropical regions, characterized by high biodiversity and year-round rainfall.

The movement or growth of a living organism in response to an external stimulus, such as phototropism (toward light) or…

A protein that binds to actin filaments in muscle cells, regulating muscle contraction by blocking the binding sites for myosin.

A regulatory protein complex involved in muscle contraction, which interacts with tropomyosin to allow or prevent the binding of myosin…