Phanerozoic Paleozoic
Mesozoic
Cenozoic
Cambrian Ordovician Surian Devenian
Carton
ferous
Permian Triassic
Jurassic
Cretaceous
Pales. Nec
gene gene
Quaternary
2.6 Ma
540 MA
488 Ma
444 Ma
416 Ma
359 Ma
299 Ma
251 Ma
202 Ma
146 Ma
65.5 Ma
23.0 Ma
19. The period was in the Mesozoic era, lasted for approximately 80.5
million years, and was preceded by the Jurassic period.
A. Carboniferous
B. Cretaceous
C. Paleogene
D. Triassic

What element is able to combine with itself and hydrogen to form large molecules ?

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.