Biology, 19.08.2019 17:20 bayleeharris8p78txa

Alarge, round skull with lightly developed supraorbital ridges (aka "brow ridge") and relatively small jaws and teeth describe the anatomical features of homo

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Answer from: ciarra31

The described anatomical features belong to Homo habilis.

Explanation:

Homo habilis´ skull reflects its large and developed brain, compared to australopithecines.

Specimens of the species characterized by having a large skull and rounded braincase, due to the size of the brain. Their forehead was slightly appearing. They also presented the facial projection reduced. Their faces were flat with a shallow slope from the nose to the teeth, with a poorly developed brow ridge. They had small jows and reduced chin, as well as small teeth and molar increasing toward the back. The hole in the center of the skull, where it fitted the spinal cord, is reflections of their walking habits on two legs.

Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

Answer from: Quest

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

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Alarge, round skull with lightly developed supraorbital ridges (aka "brow ridge") and relatively sma...

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