The Greek words " ida " ( οίδα: know ) and " idos " ( είδος: species ) have the same root as the word " idea " ( ιδέα ), indicating how the Greek mind moved from the gift of the senses, to the principles beyond the senses.

This fossil was originally described as a species of Australopithecus, but White and his colleagues later published a note in the same journal renaming the fossil under a new genus, Ardipithecus.

The black caiman and American Alligator are the only members of the alligator family that pose the same danger to humans as the larger species of the crocodile family.

The eyed and eyeless forms of A. mexicanus, being members of the same species, are closely related and can interbreed.

African horse sickness is related to Bluetongue and is spread by the same midges ( Culicoides species ).

Multiple members of the same species in close proximity constitute a population.

Authorities classify the species into three or four subspecies: B. m. musculus, the northern blue whale consisting of the North Atlantic and North Pacific populations, B. m. intermedia, the southern blue whale of the Southern Ocean, B. m. brevicauda, the pygmy blue whale found in the Indian Ocean and South Pacific, and the more problematic B. m. indica, the great Indian rorqual, which is also found in the Indian Ocean and, although described earlier, may be the same subspecies as B. m. brevicauda.

Communication is observed within the plant organism, i. e. within plant cells and between plant cells, between plants of the same or related species, and between plants and non-plant organisms, especially in the root zone.

Thus, if two species use the same codon at the same place to specify an amino acid that can be represented by more than one codon, that is evidence for a recent common ancestor.

The expression " cannibalism " has been extended into zoology to mean one individual of a species consuming all or part of another individual of the same species as food, including sexual cannibalism.

The Paleocene recovery of plants began with recolonizations by fern species, represented as a fern spike in the geologic record ; this same type of fern recolonization was observed after the 1980 Mount St. Helens eruption .< ref name =" SchultzDhondt ">

Equations should be balanced according to the stoichiometry, the number of atoms of each species should be the same on both sides of the equation.

Whether or not a certain cycloaddition would proceed depends on the electronic orbitals of the participating species, as only orbitals with the same sign of wave function will overlap and interact constructively to form new bonds.

According to Charles Darwin's 1859 theory of natural selection, features such as camouflage evolved by providing individual animals with a reproductive advantage, enabling them to leave more offspring, on average, than other members of the same species.

For example up to 200, 000 different small molecules might be made in plants, although not all these will be present in the same species, or in a single cell.

Chemical kinetics experiments can then be carried out in a " pump-probe " fashion using a laser to initiate the reaction ( for example by preparing one of the reagents by photolysis of a precursor ), followed by observation of that same species ( for example by laser-induced fluorescence ) after a known time delay.

As first discovered by James D. Watson and Francis Crick, the structure of DNA of all species comprises two helical chains each coiled round the same axis, and each with a pitch of 34 ångströms ( 3. 4 nanometres ) and a radius of 10 ångströms ( 1. 0 nanometres ).

The class of grammar-based codes are recently noticed because they can extremely compress highly repetitive text, for instance, biological data collection of same or related species, huge versioned document collection, internet archives, etc.

The same species, when growing in a half-shady damp location can develop into a flowering bush half as tall as a person, but when growing in a very dry location will only grow into a thin little plant just higher than the ankles, with tiny flowers and a few miniature leaves.

There is also some limited evidence that some reactive oxygen species are created by visible light in skin, and that these may have some role in photoaging, in the same manner as ultraviolet A does.

The competitive exclusion principle states that two species cannot coexist indefinitely by living off the same limiting resource ; one will always outcompete the other.

A population consists of individuals of the same species that live, interact and migrate through the same niche and habitat.

You are both the same size.

I asked the same questions inside the launch-control rooms of an Atlas missile base in Wyoming, where officers who wear sidearms are manning the `` commit buttons '' that could start a war -- accidentally or by design -- and in the command centers where other pistol-packing men could give orders to push such buttons.

We are not now afraid of atomic bombs in the same way that people once feared comets.

Our inability to explain why certain people are fond of us frequently induces the same kind of ritual and malaise.

In a certain perfectly definite way, the method and the theme of his stories are one and the same.

In the mystery story, as in The Wealth of Nations, individualism and the social good are two sides of the same benevolent coin.

The same command is repeated as many times as there are levels in rank from general to corporal.

Some years ago Julian Huxley proposed to an audience made up of members of the British Association for the Advancement of Science that `` man's supernormal or extra-sensory faculties are ( now ) in the same case as were his mathematical faculties during the ice age ''.

Women themselves have come to look upon matters in the same light as the outside world, and scarcely find any wrong in submitting to the importunities of a stronger will, even when their affections are withheld.

No matter how earnest is our quest for guaranteed peace, we must maintain a high degree of military effectiveness at the same time we are engaged in negotiating the issue of arms reduction.

Thoroughly modern in treatment, they are at the same time, full of simple sincerity which invariably characterizes genuine Negro folk-music and are by no means to be confused with the average ' Broadway Spirituals ' which depend for their racial flavor upon sundry allusions to the ' Amen Corner ', ' judgement Day, ' Gabriel's Horn, and a frustrated devil -- with a few random hallelujahs thrown in for good measure.

By the same test predispositions destructive of human personality exercise their most sinister impact, with the result that men of good will are often trapped and nullified.

The student of ideas and their place in history will always be concerned with the patterns of transition, which are at the same time patterns of transformation, whereby ideas pass from one area of activity to another.

These are, of course, the same people whose support he has only now rejected to seek the independent vote.

It will determine the amount of money to be spent by the college and will certify this amount to the board of freeholders, which `` shall appropriate in the same manner as other appropriations are made by it the amount so certified and the amount shall be assessed, levied and collected in the same manner as moneys appropriated for other purposes ''.

And once again, the choices are much the same.

Hence all teachers, good and bad, who have been teaching for a given number of years are paid the same salary.

Fixed monthly allowances are reimbursements for the same purpose except on a non-itemized basis.

If they are used, the walls and roof should be 10 inches thick to give the same protection as the 8-inch solid concrete blocks.

Expenditures for shipbuilding are estimated at about the same level as in 1960.

By this standard, it is determined that where two stations operating on the same frequency are involved, objectionable interference from station A exists at any point within the service area of station B where station A's signal is of an intensity one-twentieth or more of the strength of station B's signal at that point.

But during nighttime hours the skywave radiations are reflected from the ionosphere, thereby creating the possibility of one station's rendering service, via skywave, at a much greater distance than it can through its groundwave signal, and at the same time vastly complicating the interference problem because of the still greater distance over which these skywave signals may cause interference to the signals of stations on the same and closely adjacent frequencies.