What is the term for animals lacking a backbone?

Which muscle type is found in the walls of internal organs and is involuntary?

Which structure in the cell is responsible for protein synthesis?

Which human body system is responsible for producing hormones?

What is the term for organisms that maintain a stable internal environment despite external changes?

Which type of tissue in plants transports dissolved food from leaves to other parts?

Which type of RNA brings amino acids to the ribosome during protein synthesis?

What is the term for a community of organisms interacting with their physical environment?

Which type of nutrition involves organisms that feed on dead and decaying organic matter?

What is the term for a permanent change in the DNA sequence of an organism?

Which layer of the skin contains melanocytes that produce the pigment responsible for skin colour?