Introduction to Biology Exam 1- with Correct Answers and Explanation

Biosphere - Answer-earth's includes all life and the places where it exists Ecosystems - Answer-consists of all living organisms in a particular area and all the nonliving components of the environment with which life interacts, such as soil, water, and light Communities - Answer-all organisms in a tide pool (iguanas, crabs, seaweed, bacteria, etc) Populations - Answer-withint the community are various groups of interacting individuals of one species, such as a group of iguanas Organisms - Answer-an individual living thing, like an iguana Tissues - Answer-each organ is made up of several different ______, such as the heart ______, such as the heart muscle _______. A ______ consists of a group of similiar cells performing a specific function. Cells - Answer-the ____ is the smallest unit that can display all the characteristic of life Organelles - Answer-functional components of calls such as the nucleus, that houses the DNA Molecules and Atoms - Answer-the chemical level in the hierarchy. _____ are clusters of even smaller chemical units called _____. Bacteria and Archaea - Answer-single-celled organism that tend to be in groups Evolution - Answer-biology's unifying theme Natural selection - Answer-works at population level. Darwin. environment selects only certain heritable traits from those already existing Scientific method - Answer-observation, question, hypothesis, prediction, experiment, and predicted result Science - Answer-way of knowing, an approach to understanding the natural world that is based on inquiry Discovery science - Answer-enables us to describe life at its many levels