The diagram illustrates the differences between the skulls and brain volumes of three extinct hominins. rank the species shown in the diagram in order according to when they first appeared, from earliest to most recent. a. homo neanderthalensis, homo erectus, australopithecus africanus b. australopithecus africanus, homo erectus, homo neanderthalensis c. australopithecus africanus, homo neanderthalensis, homo erectus d. homo erectus, australopithecus africanus, homo neanderthalensis

The correct answer will be option- B.

Explanation:

The timeline of human evolution has been predicted and explained on the basis of the fossils. The age of the fossils helps determine when the different ancestor of the modern humans existed.

The modern human evolution started around 3.85 and 2.95 million years ago in Eastern Africa where the fossils of the Australopithecus afarensis were found.

They showed characters of both humans and apes and were evolved to Homo erectus which exhibited the characters of humans like elonagated legs and shorter arms. They evolved around 2 million years ago.

Later they evolved for the adaptations to living in the ice age with less height but more muscularity.  They were called Homo neanderthelensis which were our closest ancestors which became extinct.

Thus, Option-B is the correct answers.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.