Guides d'étude, Notes de cours & Résumés

JMU BIO 250 REIDER FINAL EXAM QUESTIONS AND ANSWERS 100%2023/2024 Community Dynamics - correct answer community ecology examines how species interactions influence structure and function Disturbance - correct answer alters a community by killing organisms, altering resource/substrate availability, and changing the physical structure of the environment from forces originating OUTSIDE the community Succession - correct answer relatively repeatable change in community composition through t...

JMU BIO 250 LAB FINAL QUESTIONS AND ANSWERS 100%2023/2024 used to compare relationship between 2 variables - correct answer Linear Regression Compare means of 2 variables - correct answer normally distributed: t-test abnormally distributed: Mann-Whitney comparing categories or preferences - correct answer chi square Linear Regression steps - correct answer analyze - regression - linear independent: IV dependent: DV R square - correct answer explains variability R square =...

MARINE BIO (FISH 250) FINAL EXAM VERIFIED ANSWERS 100%2023 What are characteristics of asexual reproduction? - correct answer ~Only requires 1 animal ~Creates clones of themselves ~More time efficient in terms of turnaround time after birth ~Minimal genetic variation ~Low amount of energy involved in the process What are characteristics of sexual reproduction? - correct answer ~Creates lots of genetic diversity ~Requires two organisms ~Fuses 2 haploid gametes ~Can be accomplished a...

MARINE BIO 250 FINAL VERIFIED ANSWERS 100%2023/2024 ectotherm - correct answer regulates body temp behaviorally endotherm - correct answer regulates body temp internally poikilotherm - correct answer body temp adjusts depending on environment influence of solar radiation - correct answer increased temp, more photosynthesis, algael blooms thermocline - correct answer water depth increases, temperature decreases pycnocline - correct answer water depth increases, density increases...

MCB 250 FINAL EXAM VERIFIED ANSWERS 100%2023 How do cells acquire different transcription factors in the first place? - correct answer The fertilized egg starts life with a sing nuclear genome. There is no gene expression at this time. Maternally derived transcription facts become localized in the egg embryo to initiate differential gene expression, or cells can communicate with one another using signals that activate particular transcription factors. Maternal gene products - correct answe...

MICROBIOLOGY 250 FINAL EXAM VERIFIED ANSWERS 100%2023 In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? a. ammonification b. dentifrication c. nitrification d. nitrogen fixation - correct answer D. nitrogen fixation. Fungi are able to reproduce asexually by creating conidiospores and sporangiospores. Which of the following is an accurate explanation for why it is advantageous that they are also capable of sexual reproduct...

MICROBIOLOGY 250 FINAL EXAM VERIFIED ANSWERS 100%2023/2024 Malaria is transmitted by - correct answer anopheles mosquito's A vaccine: - correct answer completes the afferent branch of the immune response the sexually transmitted disease agent is: - correct answer herpes simplex type II tinea pedis (athlete's foot) can be caused by - correct answer a and b/ trichophyton species and epidermophyton species delayed type hypersensitivity T cells are - correct answer CD4+ which are...

MICROBIOLOGY 250 FINAL VERIFIED ANSWERS 100%2023 Toxins - correct answer poisonous to host -endotoxin -exotoxins (various) Enterotoxin - correct answer act on interstitial cells example cholera neurotoxin - correct answer acts on nervous system example botulism Botulism characteristics and reservoir - correct answer etiologic agent: clostridium botulism gram positive bacillus endospore former anaerobe neurotoxin Reservoir: spores in soil, contaminated food. Botulism tran...

STRAIGHTERLINE MICRO 250 FINAL PREP WITH COMPLETE SOLUTIONS 100%2023 Which class of eukaryotic microorganisms can be subdivided into groups such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? A. Helminths B. Algae C. Protozoa D. Fungi - correct answer Protozoa Genetic material can be excised from one chromosome and directly integrated into another via A. conjugation. B. transformation. C. transduction. D. transposons. - correct answer transposons. Whic...

As defined by the World Health Organization, health includes physical, social, and mental components and is not merely the absence of disease or infirmity. - True The major goals of health care are promoting, maintaining, and restoring health. - True Graduates of a diploma nursing program are not eligible to take the NCLEX-RN examination. - False Reciprocity is the process that allows a nurse to apply for and be endorsed as a registered nurse by another state. - True A cu...