X: Ozone layer destruction
Y: Mass extinction
Answer:
Invertebrates are the organisms in which backbone or vertebral column is absent.
The three macroinvertebrate categories are annelids, mollusks and arthropods.
Annelids are the organisms having segmented body. They are found in moist places. Examples are leeches and earth worms.
Mollusks are the organisms which are enclosed in a calcium carbonate shell. Examples are snails and slugs.
arthropods are the invertebrates which have segmented body and jointed appendages. Examples are insects and crustaceans etc.
She has Human Papilloma Virus (HPV) Also responsible for genital warts.
Answer:
American politician Elbridge Gerry, Vice President of the United States at the time of his death, who was Governor of Massachusetts.
Explanation: