1 The study of the development of an organism from fertilized egg to birth is called: A Genetics B Embryology C Histology D Cytology
2 What is the study of the structure of organisms called? A Physiology B Anatomy C Morphology D Histology
4 Which of the following is an example of a fungus-like protist? A Slime mold B Paramecium C Euglena D Diatom
5 During which stage of meiosis do homologous chromosomes separate? A Anaphase I B Anaphase II C Metaphase I D Metaphase II
6 Which of these is a specialized animal cell? A Mesophyll cell B Guard cell C Neuron D Root hair cell
7 What is the primary role of stem cells? A To fight infections B To differentiate into specialized cells C To produce energy D To store water
9 Which organ system is primarily responsible for gas exchange? A Digestive system B Respiratory system C Urinary system D Skeletal system
10 The study of diseases and their effects on the body is called: A Pathology B Immunology C Pharmacology D Physiology
11 Which organ is responsible for filtering waste from the blood to form urine? A Liver B Kidneys C Lungs D Stomach
12 What is the main aim of biological classification? A To make organisms easier to study and understand B To increase the number of species C To make organisms extinct D To confuse scientists
13 Homeostasis refers to: A The process of cell division B Maintaining a stable internal environment C The movement of molecules across membranes D The breakdown of food
14 Which plant tissue transports water and minerals from roots to leaves? A Phloem B Xylem C Epidermis D Mesophyll
15 Which branch of biology studies the effects of drugs on living organisms? A Pharmacology B Pathology C Immunology D Toxicology
16 Which of the following is a difference between mitosis and meiosis? A Mitosis produces four cells, meiosis produces two B Mitosis occurs in gametes, meiosis in somatic cells C Mitosis produces identical cells, meiosis produces varied cells D Mitosis reduces chromosome number, meiosis maintains it
17 Which of the following best describes a tissue? A A group of similar cells that work together to perform a specific function B A structure made of different tissues that work together C The basic unit of life D A group of organs that work together
18 The movement of water across a selectively permeable membrane is called: A Diffusion B Osmosis C Active transport D Phagocytosis
19 Which of the following is a temporary exit from the cell cycle? A G0 phase B S phase C G2 phase D Prophase
20 What is the primary purpose of binomial nomenclature? A To give every species a unique two-part scientific name B To classify organisms into five kingdoms C To study the behavior of animals D To measure biodiversity
21 Which organelle is responsible for modifying, sorting, and packaging proteins? A Endoplasmic reticulum B Golgi apparatus C Lysosome D Vacuole
23 Which of the following is an error in mitosis that can lead to cancer? A Crossing over B Non-disjunction C Gene mutation D Synapsis
24 Which branch of biology focuses on the study of the functions and processes of living organisms? A Anatomy B Physiology C Morphology D Histology
25 When you are too hot, your body produces sweat. This is an example of: A Osmoregulation B Thermoregulation C Regulation of blood glucose D Regulation of oxygen