Answer:
They had a large brain size of 700 to 1,250 cubic centimeters and large brow ridges with a nuchal torus at the back of the skull.
Explanation:
<em>Homo erectus</em> was one of the species of the homo genus which were considered the first species to have the human-like the feature that is they can stand upright on two legs and were therefore referred to as the upright man.
They showed many evolutionary advances over their ancestors called Homo Australopithecus as they showed encephalization. Encephalization refers to the increase in the size of the brain due to more neuronal complexity and neurogenesis and they possessed about 750 to 1250 cc brain size.
They showed torus at the back of the muscle which can hold the muscle of the neck and also showed the large brow ridges in the front of the skull.
Thus, the selected option is the correct answer.
Answer:
- use of economical model organisms
- collaborating with other scientists with same interests
Explanation:
Using the field of biomedical research as a case study, scientists navigate through limited funding by:
1) trying their investigations on cheaply and readily available organisms such as yeast or worms like C. elegans rather than more complex and expensive higher organisms like wistar rats or Guinea pig
2) forming alliance with other notable scientists in nearby laboratories equipped with a resource or more that is unavailable insitu (at the main research lab)
Answer:
Population of a species is affected by a several of factors such as food availability,water and shelter etc.
Explanation:
If these factors such as food availability, water and shelter etc are unavailable to the organism, the death of the species occurs but if these factors are available in sufficient amount, then increase occurs in the population of species. If the place has low carrying capacity and limiting factors which is necessary for species then the immigration and emigration of the specie occurs. Those areas having sufficient food, water and shelter, the birth rate of a specie increases and which leads to increase in population.
