What is a digestive juice secreted by the liver?

What is the region of the body between the thorax and the pelvis?

What is a chamber connected to other chambers or passageways?

What is the alternation of two or more different forms in the life cycle of a plant or animal?

What is a substance used to kill microorganisms and cure infections?

What is the part of the skeleton that includes the skull and spinal column and sternum and ribs?

What is a hypothetical organic phenomenon by which living organisms are created from nonliving matter?

What is the property of being symmetrical about a vertical plane?

What is a process in which one substance permeates another?

What is reproduction without the fusion of gametes?

What are any of the forms of a gene that can occupy the same locus?

What is the part of the skeleton that include the pectoral girdle and the pelvic girdle and the upper and lower limbs?

What is the energy that an atomic system must acquire before a process can occur?

What is the synthesis in the living organisms of more complex substances from simpler ones together with the storage on energy?

What is the transport of a substance across a cell membrane against the?

What is a substance that stimulates an immune response in the body?