Life Science Praxis 5442 Questions and Answers Rated A+

Life Science Praxis 5442 Questions and Answers Rated A+ What do we call the process by which organisms maintain a stable internal environment? Homeostasis What is the genetic material found in the nucleus of a cell? DNA What is the powerhouse of the cell? Mitochondria What is the term for organisms that can make their own food? Producers What is the process by which cells divide to produce identical copies? Mitosis 2 What do we call a group of similar organisms capable of interbreeding? A species What is the organelle responsible for photosynthesis in plant cells? Chloroplast What is the term for the variety of life in an ecosystem? Biodiversity What is the movement of water across a semipermeable membrane called? Osmosis What is the process by which organisms break down food to release energy? Cellular respiration What do we call an organism that feeds on other organisms for energy? A consumer 3 What is the term for the relationship where both species benefit? Mutualism What is the process by which traits are passed from parents to offspring? Heredity What is the role of decomposers in an ecosystem? Breaking down dead material What is the primary function of red blood cells? Transporting oxygen What is the process by which plants release oxygen into the atmosphere? Photosynthesis What is the name of the scientist who proposed the theory of natural selection? Charles Darwin 4 What is the term for the nonliving parts of an ecosystem? Abiotic factors What is the function of the large intestine in the digestive system? Water absorption What do we call the outer covering of an animal cell?