Its life history is much simpler than that of the truly colonial bumblebees and can serve as an example of the life cycle of many other species.

Finally, it is suggested that in many respects the horse lung may be anatomically more comparable to that of the human than any other presently known species.

However, in contexts where " amoeboid " is defined more loosely, there are many amoeboid species that are in the Excavata clade.

Amphibians typically have a larval stage that lives in water but there are many different behavioural adaptations that have developed among species to bypass this necessity.

With their often complex reproductive needs and permeable skins, amphibians are often ecological indicators and in recent decades there has been a dramatic decline in amphibian populations of many species around the globe.

They have a muscular tongue which in many species can be protruded.

It contains many mucous glands and in some species, poison glands.

The colour change displayed by many species is initiated by hormones secreted by the pituitary gland.

Several hundred frog species in adaptive radiations ( e. g., Eleutherodactylus, the Pacific Platymantines, the Australo-Papuan microhylids, and many other tropical frogs ), however, do not need any water for breeding in the wild.

In many species of frog and in most lungless salamanders ( Plethodontidae ), direct development takes place, the larvae growing within the eggs and emerging as miniature adults.

There are fifteen species of obligate neotenic salamanders including Necturus, Proteus and Amphiuma, and many examples of facultative ones that adopt this strategy under appropriate environmental circumstances.

Although in many frog species, females are larger than males, this is not the case in most species where males are actively involved in territorial defence.

Orchids include many species of great ornamental value.

The two large families are cosmopolitan, with many of their species found in the northern hemisphere, and the smaller families are usually confined to Australia and the adjacent areas, or sometimes South America.

( Which of the two families is actually larger is unclear, owing to uncertainty about exactly how many species exist in each family ).

Flowers across the Apiaceae are fairly uniform and are usually perfect ( hermaphroditic ) and actinomorphic, but some are andromonoecious, polygamomonoecious, or even dioecious ( as in Acronema ), with a distinct calyx and corolla, but the calyx if often highly reduced, to the point of being undetectable in many species, while the corolla can be white, yellow, pink or purple.

The thick inner layer of the shell is composed of nacre or mother-of-pearl, which in many species is highly iridescent, giving rise to a range of strong and changeable colors, which make the shells attractive to humans as decorative objects, and as a source of colorful mother-of-pearl.

Amaranth species are cultivated and consumed as a leaf vegetable in many parts of the world.

Antibacterials such as penicillin and erythromycin, which used to have high efficacy against many bacterial species and strains, have become less effective, because of increased resistance of many bacterial strains.

As with many other game species, the best sources of historical and large scale population data are hunting bag records and questionnaires.

Due to decreasing availability and rising prices of premium-quality traditional tonewoods, many manufacturers have begun experimenting with alternative species of woods or more commonly available variations on the standard species.

This is because many species are unable to regulate their internal body temperature.

There is much truth in both these charges, and not many Bourbons deny them.

Unlike so many of the power-starved intellectuals in underdeveloped nations of our own day, they commanded both prestige and influence before the Revolution started.

according to many critics, in fact, the South has led the North in literature since the Civil War, both quantitatively and qualitatively.

Each man, that is, is both one and many.

The Negro composer Hall Johnson studied the American-Negro Suite and said of it, `` Of all the many songs written by white composers and employing what claims to be a Negroid idiom in both words and music, these six songs by Harold Arlen and Ted Koehler easily stand far out above the rest.

I had always thought of that lovable man as many years older than myself, although he was perhaps only twenty years older, and he confirmed my feeling, along with the feeling of both my sons, that teachers of the classics are invariably endearing.

To do this successfully required great skill and a special talent for both solemn and ribald raillery, a talent not bestowed on many persons, but one with which Milton was marked as being endowed and in which, at least in this performance, he obviously reveled.

The war could have continued many years with many thousands killed on both sides.

It is notably significant that so many Members from both sides of the aisle express their respect and admiration for our beloved Speaker, the Honorable Sam Rayburn.

of his championship of many of the progressive social measures which adorn our statute books today, and of his cooperation in times of adversity with Presidents of both of our major parties in helping to pilot the Ship of State through the shoals of today's stormy international seas.

The extent of such interference -- which may be so slight as to be undetectable at any point where either of the stations renders a usable signal, or may be so great as to virtually destroy the service areas of both stations -- depends on many factors, among the principal ones being the distance between the stations, their respective radiated power, and, of particular significance here, the time of day.

As in many other industries, rising costs and intense competition, both domestic and foreign, have exerted increasing pressure on earnings of the textile industry in recent years.

In addition, production machinery must in many cases be designed to handle with equal efficiency both natural fibers and the increasing number of synthetics, as well as blends.

the association between electric ( both electrostatic and voltaic ) forces and magnetic forces had been recognized by investigators for many decades.

Ordinary politeness may have militated against this opinion being stated so badly but anyone with a wide acquaintance in both groups and who has sat through the many round tables, workshops or panel discussions -- whatever they are called -- on this subject will recognize that the final, boiled down crux of the matter is education.

Microscopically, both kidneys showed many small cortical scars in which there was glomerular and interstitial fibrosis, tubular atrophy, and an infiltration of lymphocytes and plasma cells.

Even beginning students in linguistics are made familiar with an appreciable variety of consonant systems, both in their general outlines and in many specific details.

The details of the setting of `` Neutral Tones '' are not, strictly speaking, metaphorical, but they combine to create a mood which is appropriate both to a dismal winter day and to the end of love, and in this way love and weather, the emotions and the elements, symbolize each other in a way that is common to many of Hardy's best poems ( `` Weathers '', `` The Darkling Thrush '', and `` During Wind and Rain '', for example ) and to some moving passages in the novels as well ( Far From The Madding Crowd is full of scenes constructed in this way ).

Fundamentally, both these types, the amateur and the collector, are uncritical and many of them don't distinguish well between real folklore and bogus material.

By seeing such varied places, both interesting and beautiful, you will become aware of the many different civilizations Rome has lived through, and in particular, get a feel of Renaissance Rome.

Biological anthropologists are interested in both human variation and in the possibility of human universals ( behaviors, ideas or concepts shared by virtually all human cultures ) They use many different methods of study, but modern population genetics, participant observation and other techniques often take anthropologists " into the field ," which means traveling to a community in its own setting, to do something called " fieldwork.

Harris dates studies of both to Classical Greece and Classical Rome, specifically, to Herodotus, often called the " father of history " and the Roman historian, Tacitus, who wrote many of our only surviving contemporary accounts of several ancient Celtic and Germanic peoples.

He stated that he acquired many of his writing techniques from three books, " Narrative Technique " by Thomas Uzzell, and " The Only Two Ways to Write a Story " plus " Twenty Problems of the Short-Story Writer ", both by John Gallishaw.

Axon dysfunction causes many inherited and acquired neurological disorders which can affect both the peripheral and central neurons.