Biology, 29.11.2020 08:00 aaliyah1860
1. Does ginkgo improve memory? The law allows marketers of herbs and other natural
substances to make health claims that are not supported
by evidence. Brands of ginkgo extract
claim to "improve memory and concentration." A randomized comparative experiment found no
statistically significant evidence for such effects. The subjects were 350 healthy volunteers over
60 years old. They were randomly assigned to ginkgo or a placebo pill (a dummy pill that looks
and tastes the same). All the subjects took a battery of tests for learning and memory before
treatment started and again after six weeks.
(d) Name two variables that were controlled in this experiment and why was it beneficial to
control these variables? (3 pts)
Answers: 2
Biology, 22.06.2019 01:00
Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.
Answers: 1
Biology, 22.06.2019 01:30
Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere
Answers: 1
1. Does ginkgo improve memory? The law allows marketers of herbs and other natural
substances to ma...
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