Answer:
Sponges, the members of the phylum Porifera, are a basal animal clade as a sister of the Diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells
Explanation:
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Answer: c. Prospective cohort study
Explanation:
Prospective cohort study is a type of observational study which is used to study large number of subjects which are similar but vary with respect to certain factors required to be considered under the study. This is done to determine how these factors affect the rates of certain outcomes. The subjects are studied under different frames.
Here, in the given study the subjects are the same which is a group of middle aged men. These are at a risk of premature ventricular contractions thus are at greater risk of myocardial infraction as compared to men those heartbeats are regular. Here there are different factors to be observed upon and the subjects are also studied in different time frames thus this condition is an example of prospective cohort study.
Answer:
C. You may judge things according to old expectations
Explanation:
The aging is bringing in multiple problems with it. It affects the human health and capabilities, both physically and mentally. This often results in misunderstandings, accidents because of bad vision, forgetting of important rules, occasionally having tragic consequences. Also, the people often think that the elderly people always have old school judgement of things, but that is not the case in practice, and that totally depends on the individual and how much that individual is upgrading and is following the new trends and rules.
