American Military University SCIN 130 Quiz 7, answered latest spring 26.

American Military University SCIN 130 Quiz 7, answered latest spring 26. Quiz 7 - Results Attempt 1 of 1 2026 Attempt Score: 91 / 100 - 91 % Overall Grade (Highest Attempt) Question 1 What kind of nutrient must be eaten, because it cannot be made by the body? Question options: auxiliary essential fundamental non-essential Hide question 1 feedback Feedback Great job. Question 2 Where does the majority of protein digestion take place? Question options: stomach mouthsmall intestine esophagus large intestine Hide question 2 feedback Feedback Protein digestion occurs in the stomach, fat digestion occurs in the small intestine. Revie in Chapter 16. Question 3 Which types of vessels return oxygen-poor blood to the heart? Question options: aorta arteries capillaries veins Hide question 3 feedback Feedback Great job. Question 4 When an endotherm feels cold, what does it do? Question options: sit on a rocknothing different lays down bask in the sun Hide question 4 feedback Feedback Great job. Question 5 Which structure warms incoming air, adds moisture and removes particles? Question options: larynx nasal cavity pharynx trachea Hide question 5 feedback Feedback Great job. Question 6 The heart is an example of what type of muscle tissue? Question options: cardiac smoothskeletal fibrous Hide question 6 feedback Feedback Great job. Question 7 What is the structure responsible for filtering blood containing the metabolic wastes from cells? Question options: lungs liver heart kidney Hide question 7 feedback Feedback Great job. Question 8 Where does the majority of fat digestion take place? Question options: esophagusmouth small intestine large intestine stomach Hide question 8 feedback Feedback Great job. Question 9 What structure stores feces until defecation? Question options: rectum anus large intestine colon cecum Hide question 9 feedback Feedback Great job. Question 10 In invertebrates, circulatory fluid simply bathes the internal organs directly; what is this known as?Question options: Partial circulatory system Closed circulatory system Complete circulatory system Open circulatory system Hide question 10 feedback Feedback Great job. Question 11 Fleas live on many animals, taking advantage of a warm home as well as blood for food. The animal suffers with itches and loss of blood. This is an example of what type of symbiotic relationship? Question options: commensalism mutualism parasitism biodiversity Hide question 11 feedback Feedback Great job. Question 12What kind of survivorship curve would result if a group of organisms is producing few offspring but providing good care so their likelihood of survival is high? Question options: Type IV Type III Type I Type II Hide question 12 feedback Feedback Great job. Question 13 What is the fundamental cause of the accelerated growth rate for humans in the past 200 years? Question options: reduced death rate increased birth rate increased death rate reduced birth rate Hide question 13 feedback Feedback Although an increase in births would increase the number of people eon Earth, that is norecent growth rate. Review the human population in Chapter 19. Question 14 Populations can be characterized by their size and what other factor? Question options: range breadth magnitude density Hide question 14 feedback Feedback Great job. Question 15 What is another major issue with the current human population growth, in addition to degradation of the natural environment? Question options: lack of food surplus of water increasing soil nutrients excess fossil fuels Hide question 15 feedback FeedbackGreat job. Question 16 Which type of population growth regulation is caused by mortality in a population regardless of population density? Question options: density-dependent sparsely-independent sparsely-dependent density-independent Hide question 16 feedback Feedback Review population growth and regulation in Chapter 19. Question 17 An oxpecker is a bird that lives on the backs of zebras and eats the parasites. The oxpecker gets food, and the zebra gets pest control. This is an example of what type of symbiotic relationship? Question options: commensalism mutualism parasitism biodiversity Hide question 17 feedbackFeedback Great job. Question 18 The hoverfly, which is harmless, looks very similar to the wasp, which can cause harm. What is this referred to as? Question options: mimicry herbivory predation mechanical defense Hide question 18 feedback Feedback Great job. Question 19 Toxins in foxglove are an example of what type of defense to herbivory? Question options: biological mechanical chemical legal Hide question 19 feedbackFeedback Great job. Question 20 Barnacles live on the skin of whales, and catch plankton, etc. while the whale is swimming. The whale is not harmed nor gets any benefit. This is an example of what type of symbiotic relationship? Question options: commensalism mutualism parasitism biodiversity Hide question 20 feedback Feedback Great job. Question 21 What is a good definition of ecology? Question options: The study of living organisms. The study of the nature and properties of matter and energy. The study of the interactions of organisms both with one another and with their phy The identification of substances of which matter is composed. Hide question 21 feedbackFeedback Great job. Question 22 What do all of Earth's ecosystems considered together compromise? Question options: biosphere lithosphere atmosphere hemisphere hydrosphere Hide question 22 feedback Feedback Great job! Question 23 What is the current doubling time for the human population? Question options: About 200 years About 50 years About 1,000 years About 100 yearsHide question 23 feedback Feedback Great job! Question 24 Homeostasis is influenced by what kind of feedback mechanism? Question options: balanced negative neutral positive Hide question 24 feedback Feedback Great job! Question 25 Watertown collected and compiled a data table of recyclables collected last week. What is the total mass of the recyclables collected last week? Recycled Material Mass (lbs) Percentage of Total (%) Paper 1380 69 Plastic 280 14 Glass 240 12 Aluminum 100 5 Question options:2000 lbs 1660 lbs 1900 lbs 1380 lbs Hide question 25 feedback Feedback Correct! The total mass is found by add the individual masses. (total mass = mass1 + ma Question 26 The following data table indicates number of experiments you ran each day last week. What is the mean (average) number of experiments you ran per day last week? Day Experiments Monday 5 Tuesday 6 Wednesday 2 Thursday 6 Friday 1 Question options: 4 2 5 6Hide question 26 feedback Feedback Correct! Average = total sum of all numbers in set / number of items in set. Question 27 A data table of the union membership by occupation of a city is shown below. In which occupation is the ratio of non-membership to membership the highest? Occupation Member (x106 ) Non-member (x106) Health Care 0.50 2.75 Protective Service 1.95 0.50 Food Service 2.90 3.90 Personal Care 0.55 2.65 Other 2.90 1.95 Question options: Personal Care Food Service Health Care Protective Service Hide question 27 feedback Feedback Correct! If there are two numbers A and B, the ratio between them can be expressed asQuestion 28 From which park did the elephant whose DNA was under investigation come? Question options: Bomu Wildlife Reserve Okapi Wildlife Reserve Garamba National Park Amboseli National Park Hide question 28 feedback Feedback Great. Question 29 Which pieces of DNA will travel farthest on an agarose gel? Question options: DNA ladders large pieces small pieces mammalian samples Hide question 29 feedback Feedback Great.Question 30 In what type of location are the majority of the elephants who are illegally killed from? Question options: large cities airports back yards protected parks Hide question 30 feedback Feedback Great. Question 31 What is the purpose of a DNA ladder in an agarose gel? Question options: To have a size comparison for your sample To make the gel aesthetically pleasing To enable you to translate to protein To ensure you have DNA and not RNA Hide question 31 feedback Feedback Great.Question 32 These sources can be used to obtain elephant DNA EXCEPT? Question options: hair without root bodily fluids tusks saliva dung Hide question 32 feedback Feedback Great. Question 33 How are hormone levels controlled? Question options: positive feedback negative feedback skewed feedback impartial feedback Hide question 33 feedback FeedbackGreat job.