Carol Ann Susi (February 2, 1952 -- November 11, 2014) was an American actress. She was known for providing the voice of recurring unseen character Mrs. Wolowitz, mother of Howard Wolowitz, on the television series The Big Bang Theory.
did the actress who played mrs wolowitz die?
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Answer: yes

Memorial Day or Decoration Day is a federal holiday in the United States for remembering the people who died while serving in the country's armed forces. The holiday, which is currently observed every year on the last Monday of May, was held on May 28, 2018. The holiday was held on May 30 from 1868 to 1970. It marks the unofficial start of the summer vacation season, while Labor Day marks its end.
is memorial day the first day of summer?
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Answer: no

Mantas evolved from bottom-dwelling stingrays, eventually developing more wing-like pectoral fins. M. birostris still has a vestigial remnant of a sting barb in the form of a caudal spine. The mouths of most rays lie on the underside of the head, while in mantas they are right at the front. Manta rays and devil rays are the only ray species that have evolved into filter feeders.
do manta rays have barbs on their tails?
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Answer:
no