What is the chief function of the digestive system?

• To absorb nutrients

• To break down food

• To produce enzymes

• To excrete waste

What type of digestion involves physically breaking down food?

• Cellular digestion

• Biological digestion

• Mechanical digestion

• Chemical digestion

Where does absorption of nutrients primarily occur?

• Stomach

• Small intestine

• Mouth

• Large intestine

What is the process of removing undigested food called?

• Assimilation

• Digestion

• Egestion

• Absorption

What structure helps break down food in the mouth?

• Bile

• Pancreas

• Stomach

• Saliva

What is the term for the exchange of genetic material during meiosis?

• Telophase

• Interphase

• Mitosis

• Crossing over

Which phase of mitosis involves chromosomes lining up in the middle of the cell?

• Telophase

• Prophase

• Metaphase

• Anaphase

What classification system did Carl Linnaeus create?

• Cladistics

• Genetic taxonomy

• Binomial nomenclature

• Phylogenetic tree

What is the primary characteristic of Eubacteria?

• Presence of peptidoglycan

• Absence of a cell wall

• Presence of chlorophyll

• Multicellular structure

Which kingdom includes organisms that are eukaryotic and heterotrophic?

• Archaea

• Plantae

• Fungi

• Bacteria