ENWC 201 Midterm Canvas Quizzes - Questions with Verified Answers Based on the definitions given in class: the term "wildlife" can include all living
... [Show More] things, whether domesticated or non-domesticated a. true b. 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" a. zo meaning "animal" b. omni meaning "all" c. echo meaning "outer" d. logos meaning "study of" e. bios meaning "life" f. oikos meaning "home" "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 a. true b. false 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 a. live birth b. mammary glands c. teeth d. three inner ear bones e. hair f. claws g. vertebrae 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 a. wings b. beaks c. bipedal (walks on two legs) d. feathers e. lays eggs 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" a. true b. 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 a. true b. false Pioneer communities in the rainforest of Costa Rica create habitat for what are called early successional wildlife species a. true b. false What is the difference between primary and secondary succession? a. primary succession happens much more frequently than secondary succession b. 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 c. secondary succession takes place after volcanoes erupt and lava has covered the area d. all of the above 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 a. there is a decrease in the number of organisms b. there is an increase in biomass c. there is a loss of approximately 90% of the energy available d. there is an increase in energy available (plus 10%) A niche is considered an animals habitat, i.e., the physical and biological resources required by an organism for its survival and reproduction a. true b. false Which of the following steps are part of the process of natural selection? a. there must be genetic variation b. a lack of genetic variation causes animals to seek out new niche space c. all but two offspring die, so that the parents are only replacing themselves d. an overabundance of individuals leads to a shortage in resources e. some individuals are able to outcompete other for limited resources and pass on their genes f. a sudden flush of resources limits competition so that all individuals can survive When one animal kills and eats another animal this is known as ______. other interactions between animals are also present. one such as interaction is when one species benefits from the actions of another, but the other species is not affected either way. this is called ______. another interaction is when two different species compete for the same resource, which is called ______ . an example would be when brown bears and mountain lions compete over a deer kill. a fourth interaction is seen when two different species have a symbiotic relationship in which both animals benefit. This interaction, ______ , is exemplified by the gobi fish and pistol shrimp, who share a burrow in the ocean and "help" each other. a. commensalism b. interspecific competition c. intraspecific competition d. mutualism e. parasitism f. predation 1. f 2. a 3. b d. d The bald eagle occurs during its breeding season in virtually any kind of american wetland habitat such as seacoasts, rivers, large lakes or marshes or other large bodies of open water with an abundance of fish, these fish are the ______ component of habitat a. shelter b. food c. water d. space Studies have shown a preference for bodies of water with a circumference greater than 11 km (7 mi), and lakes with an area greater than 10 km2 (4 sq mi) are optimal for breeding bald eagles, this is the ______ component of habitat a. shelter b. food c. water d. space The bald eagle typically requires old-growth and mature stands of coniferous or hardwood trees for perching, roosting, and nesting, this is the ______ component of habitat
a. shelter b. food c. water d. space Bald eagles and eaglets (baby eagles) derive the ______ component of habitat from their food a. shelter b. food c. water d. space The term habitat refers to (select all the apply) a. the role that an animal plays in its environment b. the area that an animal protects from all other individuals or species c. the physical and biological resources needed by an animal in order to reproduce d. the behaviors exhibited by a species of a long time period e. the physical and biological resources needed by an animal to survive 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 a. true b. false Approximately 40% of the nation's migratory waterfowl use the mississippi flyway during their migration, more than any other flyway in the US a. true b. false A female cougar 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 a. fecundity b. production c. an r-strategist d. natality e. a K-strategist In a monogamous species, having a sex ratio skewed towards females (i.e., more females than males) will provide the highest level of production/ natality a. true b. false [Show Less]