Sentences with phrase «stage in vertebrate»

«These findings demonstrate a single origin of gills that likely corresponds with a key stage in vertebrate evolution: when some of our earliest relatives transitioned from filtering particles out of water pumped through static bodies to actively swimming through the oceans,» says lead author Dr Andrew Gillis, a Royal Society University Research Fellow in Cambridge's Department of Zoology, and a Whitman Investigator at the Marine Biological Laboratory in Woods Hole, US.

Not exact matches

Anchiornis possesses well - developed feathers on all four limbs, and comes from a «critical stage along the line to birds», says Xu Xing of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.

Since the sexual reproduction stage of malaria only occurs in insects, Poinar said in the new study that they must be considered the primary hosts of the disease, not the vertebrate animals that they infect with disease - causing protozoa.

«We're seeing more and more often now that [fruit flies] and vertebrates use the same signaling pathways over and over again in many stages of development.

With their proto - lungs and proto - limbs, lungfish represent the earliest stage in the evolution of air - breathing vertebrates.

Generations of biology students have been convinced — in part because of drawings done 123 years ago by the German biologist Ernst Haeckel — that vertebrate embryos of different animals pass through an identical stage of development.

As far as the vertebrate / mollusk eye is concerned, intermediate, functioning stages have existed in nature, which is also an illustration of the many varieties and peculiarities of eye construction.

In recent years, scientists have found that in vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch genIn recent years, scientists have found that in vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch genin vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch gene.

His radial unit hypothesis set the stage for our current view of the evolutionary steps involved in constructing ever more complex and sophisticated vertebrate brains.

A new study from SciLifeLab / Uppsala University published in PLOS ONE shows that genes crucial for vision were multiplied in the early stages of vertebrate evolution and acquired distinct functions leading to the sophisticated mechanisms of vertebrate eyes.

The parasite can remain dormant as a cystozoite (a cystic developing stage) in the muscles cells of this vertebrate host until it is ingested by a dog and causes ACH.