QUES: MSDSs are a widely done system for cataloging information on chemicals chemical compounds and chemical mixtures

correct the punctuation.

CORRECTED: MSDSs are a widely done system for cataloging information on chemicals, chemical compounds, and chemical mixtures.
Question: If there are several types of files associated with a program the menu will also indicate the last files of that type that were active Desktop elements are listed in the Desktop menu
--
Answer: If there are several types of files associated with a program, the menu will also indicate the last files of that type that were active. Desktop elements are listed in the Desktop menu.
From a mating of two white Texels who both carry the factor for the blue colour there is a 25 percent chance blue lambs will be born while a mating between a Blue Texel and another Blue Texel always gives blue lambs Texel sheep evolved as a result of crossbreeding the Dutch polder sheep with several English breeds such as Leicester Wensleydale and Lincoln at the beginning of the 20th century

Can you repeat this sentence, but add in punctuation?
From a mating of two white Texels who both carry the factor for the blue colour, there is a 25 percent chance blue lambs will be born while a mating between a Blue Texel and another Blue Texel always gives blue lambs. Texel sheep evolved as a result of crossbreeding the Dutch polder sheep with several English breeds, such as Leicester, Wensleydale, and Lincoln at the beginning of the 20th century.
input: Particularly in view of yacht financing and value retention recommends Sandra Hein boat customers and interested parties always most careful attention to keep the value sequence and the residual value of the boats in the eye and especially where the planned to sell the ship to the end of the financing term In order to risk any loss of value should the shipowner never let maintenance and care of the boat ignored underlines the boat expert the importance of fairfocal theme refit
fixed: Particularly in view of yacht financing and value retention recommends Sandra Hein boat customers and interested parties, always most careful attention to keep the value sequence and the residual value of the boats in the eye - and especially, where the planned, to sell the ship to the end of the financing term. "In order to risk any loss of value, should the shipowner never let maintenance and care of the boat ignored ", underlines the boat expert the importance of fair-focal theme "refit".
input ---- Enables you to verify the time logs or billed hours using their virtual time sheets
output ---- Enables you to verify the time logs or billed hours using their virtual time sheets.
Add punctuation: The parasites then enter the mammalian human host through the bug bite or breaks in the skin or conjunctiva
A:
The parasites then enter the mammalian (human) host through the bug bite, or breaks in the skin or conjunctiva.