Ascientist found a hominid fossil that appeared anatomically to be that of homo habilis. it was found, however, in a rock layer that suggests it is only about 150,000 years old. based on this, he wants to publish a paper asserting the fossil shows that homo habilis lived much longer than thought and was contemporary with early homo sapiens. which of the following should he do to build a stronger case before he publishes? (2 points)

convince other scientists to support his conclusions about the fossil.
look for evidence of cave paintings at the site where he found the fossil.
find out how old the fossil actually is using radioactive dating.
look for similar fossils in the same rock strata.

The correct answer is C. Find out how old the fossil actually is using radioactive dating.

Explanation:

A fossil refers to remains or evidence of the existence of a specific species in the past and that help scientist known the species that lived during a certain geological period. Additionally, one of the most common methods to determine how old a fossil is the use of rock layers that compares previous fossils and  the layer in which they were found to new fossils, this is the case of the scientist that found a fossil that seems to belong to a Homo habilis and suggest this species lived longer than thought.

However, as the age of this fossil has been determined only based on rock layers to build a stronger case the scientist will need to corroborate the age of the fossil using other methods as rock layers can be imprecise this includes methods such as the radioactive dating that uses the radioactive isotopes to find the age of rocks or fossils and in some cases is more precise than other methods. Therefore, the step this scientist should follow it to find out how old the fossil actually is using radioactive dating.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

it should be briana that has it to me