The state government because it is different in every state therefore the state government decides
Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
When determining the best communication media to meet global performance, the noise factor affects communication.
<h3>What is communication?</h3>
Communication simply means the exchange of information between different parties.
When determining the best communication media to meet global performance, the noise factor involves how immune a communication medium is to outside electronic interference.
Learn more about communication on:
brainly.com/question/26152499
Cycads are gymnosperms that were diverse and abundant during the Mesozoic era. extant species of cycads share many traits with those from the Mesozoic era. Cycads bear cones, are long-lived with slow growth rates, show late reproductive maturity, and have very few offspring. based on this description, the cycads are responses k-strategists with a type i survivorship curve.
<h3>What are Cycads?</h3>
Cycads are seed plants with a thick, woody trunk and a crown of sizable, stiff, pinnate, evergreen leaves. The species are dioecious, meaning that each plant of a species is either a male plant or a female plant. Cycads come in a variety of sizes, with trunks ranging in height from a few centimeters to several meters.
Cycads are essentially woody plants with cone-shaped reproductive structures as well as roots, a stem, and leaves.
Ancient vascular plants known as cycads were once a significant part of the world's flora. Cycad fossils go back to the early Permian.
Read more on gymnosperms here: brainly.com/question/18271087
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Answer: the answer is C
Explanation: I just took the quiz