Fill in the Blanks Scientific TermsOnline version Select the correct word and expand your science vocabulary. by Légende X 1 invisible alive hidden extinct endangered sleeping When a species disappears completely and no longer exists , it is called . 2 Evolution Revolution Mutation Stagnation Extinction Conservation is the process by which species change over time through natural selection . 3 ecosystem anomaly evolution organism adaptation environment An is a community of plants , animals , and their environment all working together . 4 deforester protector conservationist naturalist developer farmer A person who works to protect and preserve natural environments and wildlife is known as a . 5 anthropology biology genetics ecology chemistry anatomy The study of how traits are passed from parents to offspring is called . 6 Oxygen Bacteria DNA Protein RNA Enzyme is the molecule that carries genetic instructions for life and stands for Deoxyribonucleic Acid . 7 PCR Photosynthesis MRI CAT scan Microscope CRISPR is a powerful tool used by scientists for editing genomes , allowing them to alter DNA sequences . 8 red blood stem virus atom nerve organ A cell is a special type of cell that can grow into different parts of the body , like skin or bone .
