ENWC 102 Midterm Exam Q&A 2024

ENWC 102 Midterm Exam Q&A 2024 Based on the definitions given in class: the term "Wildlife" can include ALL living things, whether domesticated or non-domesticated - CORRECT ANSWER-FALSE Ecology is the scientific study of the distributions, abundance and relations of organisms and their interactions with the environment. Choose ALL of the correct root terms used by Ernst Haeckel in creating the word "Ecology". - CORRECT ANSWER-Oikos "home" Logos "study of" "Conservation" includes the concept of using our natural resources, e.g. via timber harvest, fishing, and hunting, but doing so in a manner that is sustainable - CORRECT ANSWER-True Choose all answers that are defining characteristics of the class Mammalia, i.e., traits that you will only find in mammals and no other animals - CORRECT ANSWER-Three inner ear bones, hair, mammary glands Choose all answers that are defining characteristics of the class Aves (Birds), i.e., traits that you will only find in birds and no other animals - CORRECT ANSWER-feathers How communities (the living part of an ecosystem) vary across time after a disturbance (e.g., a forest fire) is described by the term "Biome" - CORRECT ANSWER-False One way to identify if a snake may be venomous is from the shape of its head, even if you do not know which species it is - CORRECT ANSWER-True Pioneer communities in the rainforest of Costa Rica create habitat for what are called early successional wildlife species - CORRECT ANSWER-True What is the difference between primary and secondary succession? - CORRECT ANSWER-In primary succession, seeds must blow in from outside the area, and soil needs to be created, whereas in secondary succession, soil already exists and the plants that grow tend to be from the seedbank already in the soil. Choose all correct answers: As you move up in trophic level, e.g., from producer "up" to primary consumer, or primary consumer "up" to secondary consumer - CORRECT ANSWER-There is a decrease in numbers of organisms; there is a loss of approximately 90% of the energy available A niche is considered an animals habitat, i.e., the physical and biological resources required by an organism for its survival and reproduction - CORRECT ANSWER-False Which of the following steps are part of the process of Natural Selection? - CORRECT ANSWER-An overabundance of individuals leads to a shortage in resources; Some individuals are able to outcompete others for limited resources and pass on their genes; There must be genetic variation within a species Climate change is one of the biggest threats to Monteverde Cloud Forest, because it is causing the forest to become warmer and drier, harming the many species in this forest that depend on the moisture. - CORRECT ANSWER-True Approximately 40% of the nation's migratory waterfowl use the Mississippi Flyway during their migration, more than any other flyway in the US. - CORRECT ANSWERTrue A female cougar (also known as a mountain lion, catamount, or puma), reaches reproductive age at ~2 years old and produces a litter every two to three years. Female cougars are very protective of their cubs, which stay with their mother for up to 2 1/2 years. This reproductive system is best described as: - CORRECT ANSWER-K strategist In a monogamous species, having a sex ratio