Marca en los recuadros de la línea temporal la letra que corresponda, según el caso. a. Theodor Schwann concluyó que todos los animales están formados por células

b. Lynn Margulis propuso la teoría de la endosimbiosis

c. Mathias Schleiden estableció que todas las plantas
están formadas por células

d. Robert Hooke lo observó las paredes de celulas vegetales en un corcho

e. Lan Wilmut y sus colegas produjeron el primer clon animal llamado Dolly

f. Anthony van Leeuwenhoek observó animalculos con ayuda de un microscopio simple

1665. 1683. 1837 y 1838. 1966. 1996
. ___. . . ​

the answer is a. co2, this would be colder than the : )

explanation:

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them