Biology, 10.10.2019 03:00 salmanderabdi12
Astudent hypothesized that watching sports on television would cause viewers’ pulse rates to increase. she designed an experiment to determine the effect of watching sports on pulse rate. a group of 200 volunteers took their pulse rates and then watched their favorite sports on television. after the games, they immediately took their pulse rates again. the data collected showed that the pulse rates of some people increased, but the pulse rates of an equal number of people did not change. although the hypothesis was not supported by the data, the hypothesis is still valuable because it 1. may lead to further investigation 2. can be changed to fit the data 3. is the opinion of the experimenter 4. is based on beliefs of the volunteers
Answers: 3
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species
Answers: 3
Biology, 22.06.2019 02:00
What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream
Answers: 1
Biology, 22.06.2019 02:00
What type of weather does tropical continental air bring in summer? hot and cloudy cool and sunny hot and sunny cool and cloudy
Answers: 3
Biology, 22.06.2019 06:20
Which direction does the energy flow in this energy pyramid ?
Answers: 1
Astudent hypothesized that watching sports on television would cause viewers’ pulse rates to increas...
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