BIO 100 Exam #1 – Umaine with correct answers 100% 2025

BIO 100 Exam #1 – Umaine with correct answers 100% 2025 Ecology - Correct Answer the study of the interactions of living organisms with their environment Levels of ecological study - Correct Answer organisms, populations, communities, ecosystems, & the biosphere Organisms - Correct Answer individual living things (singular) Populations - Correct Answer group of individuals that belong to the same species and live in the same area Communities - Correct Answer consists of all the populations of different species within an area and their interactions amongst each other Ecosystems - Correct Answer a community of living organisms and their interactions with their abiotic environment Biosphere - Correct Answer all the ecosystems on Earth Conspecifics - Correct Answer organisms that are all members of the same species Heterospecifics - Correct Answer members of different species Mutualism - Correct Answer a relationship between two species from which both benefit Ecosystem ecology - Correct Answer study of biotic and abiotic factors influencing a defined ecosystem and their interactions within the ecosystem Biotic - Correct Answer living things Abiotic - Correct Answer non-living things Biogeography - Correct Answer study of the geographic distribution of living things and the abiotic factors that affect their distribution Photosynthesis - Correct Answer converting sunlight to energy and biomass (the starting point of energy flow in ecosystems) Migration - Correct Answer the long-rage seasonal movement of animals Hibernation - Correct Answer period of inactivity that some animals experience in winter that allows them to survive on stored body fat Estivation - Correct Answer A period of inactivity and lowered body temperature that some animals undergo in summer as a protection against heat and dryness Inorganic nutrients - Correct Answer water and minerals Climate - Correct Answer long-term atmospheric conditions of an area Weather - Correct Answer day-to-day conditions of the atmosphere, including temperature, precipitation, and other factors on an area Milankovitch cycles - Correct Answer cyclic changes in Earth's orbit that may affect climate Solar intensity - Correct Answer amount of solar power energy the sun emits in a given amount of time Haze-effect cooling - Correct Answer effect of the gases and solids from a volcanic eruption on global climate Greenhouse gases - Correct Answer atmospheric gases such as carbon dioxide and methane that absorb and emit radiation, thus trapping heat in Earth's atmosphere Clathrates - Correct Answer frozen chunks of ice and methane found at the bottom of the ocean Permian extinction - Correct Answer Largest mass extinction in history, as it wiped out about 90% of all animal species due to the warming of Earth's climate Phenology - Correct Answer the study of cyclic and seasonal natural phenomena, especially in relation to climate and plant and animal life Demography - Correct Answer the statistical study of population changes over time: birth rates, death rates, and life