Bio 250 exam - Study guides, Class notes & Summaries

What is relative fitness? Ans: the contribution an individual makes to the gene pool of the next generation relative to the contributions of other individuals Name the obstacles of passing on genes ("agents of selection") Ans: Survival - find food, avoid predators/ parasites, compete/cooperate with others, protection from elements Reproduction - find mate, surplus energy to make offspring, care for offspring, defend mating territor Define putative adaptation. Give an example Ans: A...

Bio 250 Exam #2 Questions And Answers | 100% Correct Answers Rated A+

Define fecundity Ans: The ability to reproduce Define fertility Ans: The average number of offspring per reproductive female What is the relationship between life cycle complexity and reproductive rate? Ans: Organisms with a simple life cycle generally reproduce quicker Describe a stage of life in which an organism is sessile? Ans: The organism is attached to a surface (such as a rock) What is a hermaphrodite? Ans: An organism with both male and female reproductive organs What is a lif...

1-What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation 2-In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonification b. denitrification c. nitrification d. nitrogen fixation 3-Farmers commonly inoculate legume crops with Rhi...

which is the most accurate statement? Ans: anatomy has always been known to reveal the relationship between body parts it is important to study the discipline of anatomy because it _________. Ans: all of the answers are correct anatomical information statement Ans: Anatomic information is all historical OR It describes body parts and considers probable function the branch of science that studies groups of cells and how they work together is called__________ Ans: anatomy the study o...

Bio 250 Exam 1 Questions with complete solutions

The sum total of all the microbes in a certain environment is termed the______ Select one: a. biofilm b. microbial niche c. microbiome d. phylogeny e. domain: Microbiome 2. Studies of the immune response to an infection caused by microorganisms would be performed by a/an _______. Select one: a. hypersensitivity specialist b. geomicrobiologist c. epidemiologist d. immunologist: Immunologist 3. Which of the following is NOT a recent discovery that has had a huge impact on the under...

Why is it important to study microbiology? A. Microorganisms are part of the natural environment and important to nutrient cycling. B. Microorganisms are vital to producing essential products. C. Microorganisms are excellent subjects on which to conduct scientific research. D. Microorganisms are linked to many human diseases. E. All of these. Ans: E Which of these groups are single-celled and possess a nucleus? A. Fungi B. Bacteria C. Viruses D. Protozoa E. Helminths Ans: D. Th...

Ecology (1) Ans: - interaction between organisms and their environment - typically describe the relationship between living organisms and their specific biome Ecology (2) Ans: study of interactions that govern the distribution and abundance of organisms Ecology (3) Ans: the scientific study of the interactions that determine the distribution and abundance of organisms 3 Important biological organizations Ans: Ecosystems Communities Populations Environmental Science Ans: focuses o...

BIO 250 Exam 3 Questions And Answers With Verified Study Solutions