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- Crickets “chirp” by rubbing their wings or legs over each other. This phenomenon is known as stridulation. It is a means by which male crickets “call” to females to communicate their interest in mating. Frequency refers to the number of chirps that crickets produce during a period of time. Some have suggested that you can tell the temperature and the humidity based on how fast crickets chirp. Independent variable: Dependent variable: Controlled variables (at least 3): a. b. c Control Treatment:QUESTION 34 In the U.S. in 2015, about 5% of all deaths were due to stroke. This statement is an example of which measure? Incidence rate Proportionate mortality ratio (PMR) Cause-specific mortality rate Case-fatality rateT/F question The driving force of blood circulation is the contraction of the heart atriums. Normal blood pressure is about 120/80 mm Hg. Statistically, smoking is known to cause 1 death every 6 seconds worldwide. The integumentary system is composed of connective tissue. Adipose tissue functions as an energy source and as body insulation.
- 5. With advancing age, the 1. Paco2 increases 2. PaO2 decreases 3. decreases 4. decreases A. 1 only B. 2 only C. 3 and 4 only D. 2 and 4 onlyIt says predict thaats all the info i haveHow do you create a graph like the one in the picture? Here is the data from my lab. Time Concentration Mean 1 hr 100 4.7 70 6.6 50 6 30 4.2 10 0.96 1 0.08 0.1 0 control 0.08 24 hr 100 10 70 10 50 10 30 10 10 10 1 3.7 0.1 1.5 control 0.79 48 hr 100 10 70 10 50 10 30 10 10 10 1 6.96 0.1 3.4 control 1.8 A tutorial would be much appreciated or even a video that walks you through the process. Cheers
- Goldfish are one of the most common aquatic pets. The average temperature to maintain healthy goldfish is between 72-75 degrees Fahrenheit. However, it is not unusual to find goldfish keeping office workers company in frigid cubicles as low as 68 degrees Fahrenheit. Mary noticed her goldfish opened and closed it’s operculum (protective covering for the gills) more often when the temperature in her office was warm. Worried, she may be harming her pet by keeping her office so cold, Mary set up an investigation to test the impact cold temperatures had on her goldfish’s respiration rate. Which of the following experiments would be best to investigate if goldfish maintain homeostasis during varying temperatures?1. PHC was declared in 1978 as a means of achieving the "Health for all goal by year 2000". More than 40 years now, we are still talking about PHC. Justify why we still talk about PHC todayQUESTION 32 In 2017, there were 52 deaths due to unintentional injuries per 100,000 population in the U.S. This statement is an example of a(n): Proportionate mortality ratio (PMR) All-cause mortality rate Case-fatality rate Cause-specific mortality rate
- All other factors being held constant, increased carbon dioxide increases plant biomass; this is ____. At high temperatures (35C) C4 plants will respond more favorably to increased carbon dioxide compared to C3 plants; this is ____. Select one: a. true, false b. true, true c. false, false d. false, trueCockroaches are nocturnal insects and are active at night and inactive during the day. You place cockroaches in an experimental chamber which gives you complete control over temperature, relative humidity, and light. Throughout your experiment you keep temperature and relative humidity constant, but you vary light as follows: For the first 3 days, the lights go off at 6 PM each day and come one at 6 AM (a 12/12 light/dark cycle). From days 4-11, you then keep the cockroaches in constant darkness (0/24 light/dark) and you then restore the 12/12 light dark cycle starting on day 12. You measure the activity of the insects and indicate this using the gray bars shown in the graph below: 1. Based on these results, you can correctly conclude that: a. activity in cockroaches is controlled by an endogenous rhythm. b. activity in cockroaches is under only exogenous control. c. the zeitgeber for activity is temperature fluctuation. d. the data show that the activity of the per gene in…Cockroaches are nocturnal insects and are active at night and inactive during the day. You place cockroaches in an experimental chamber which gives you complete control over temperature, relative humidity, and light. Throughout your experiment you keep temperature and relative humidity constant, but you vary light as follows: For the first 3 days, the lights go off at 6 PM each day and come one at 6 AM (a 12/12 light/dark cycle). From days 4-11, you then keep the cockroaches in constant darkness (0/24 light/dark) and you then restore the 12/12 light dark cycle starting on day 12. You measure the activity of the insects and indicate this using the gray bars shown in the graph below: During the 0L/12D period from days 4-11: a. the cockroaches are showing entrainment. b. the per gene in the optic lobes is inactive. c. the cockroaches are exhibiting free run. d. the cockroaches are exhibiting arhythmic activity. e. a and b f. c and d