The extinction event that took place about 65 million years ago wiped out about one-half of all animals on earth. which of the following were not wiped out by this event?

ammonites

marine plankton

non-avian dinosaurs

avian dinosaurs

Avian dinosaurs

Explanation:

Avian dinosaurs are the only dinosaurs that survived the lethal meteor that created the Chicxulub crater on the Yucatan Peninsula, Mexico. Although the name "dinosaur" was coined from Greek, meaning something like "terrible lizard" or rather "frighteningly large lizard", avian dinosaurs were not lizards. They were quite diverse, and included a group of feathered animals, the ancestors of modern birds.

According to the authors of the study led by Canadian paleontologist Derek Larson, shortly after the meteor impact  marking the end of the Cretaceous geological period, terrestrial food chains relying on plant photosynthesis would have collapsed. Without plants, herbivores that eat them do not survive; Without herbivores, there is no food for carnivores. The avian dinosaurs included carnivores with teeth in their beaks, which also became extinct due to massive ecological change. Already their toothless colleagues were able to survive by eating seeds.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."