Sentences with phrase «many vertebrate animals»

The sequence of experience in a waking vertebrate animal is the paradigm case.
Given a system or composite of individuals, all on a comparable level, for instance molecular or cellular, then in some cases, given integration of activities (thus molecules in a cell, or cells in a vertebrate animal), there may be what Leibniz called a «dominant monad» or what Whitehead calls a «society of presiding occasions.»
Sex hormones, including testosterone, evolved 500 million years ago — before the first vertebrate animals — from the «mother» of all steroid hormones, estrogen.
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.
Hughes's winning research proposed using microarray techniques to compare the genomes of a variety of vertebrate animals to test for common regulatory elements that determine gene expression.
Growth hormone is a polypeptide hormone synthesised and secreted by the anterior pituitary gland which stimulates growth and cell reproduction in humans and other vertebrate animals.
The mammals are the class of vertebrate animals characterized by the production of milk in females for the nourishment of young, from mammary glands present on most species and specialized skin glands in monotremes that seep or ooze milk; the presence of hair or fur; specialized teeth; three minute bones within the ear; the presence of a neocortex region in the brain; and endothermic or «warm - blooded» bodies.
More than 98 % of vertebrate animals have jaws.
Jaws and teeth have been important innovations in the evolution of vertebrate animals.
For her PhD, Viglietti studied the fossil - rich sediments present in the Karoo, deposited during the tectonic events that created the Gondwanides, and found that the vertebrate animals in the area started to either go extinct or become less common much earlier than what was previously thought.
«We definitely expected the sharks to be old, but we didn't expect that it would be the longest - living vertebrate animal,» says Julius Nielsen of the University of Copenhagen, Denmark.
A report published in March in the journal Trends in Genetics revealed that the lizardlike native of New Zealand has undergone the fastest rate of molecular evolution of any vertebrate animal studied thus far.
«[It] has a single row of belly scales, it has very snake - like vertebrae, it has a body longer than the tail, it has hundreds of vertebrae, it has the remains of other vertebrate animals in the stomach and so it was a carnivore, it has backward pointing teeth.
When fighting diseases, ant colonies show a remarkable similarity with the immune system that protects the organism of vertebrate animals.
This suggests that brain sleep dates back at least to the evolution of the amniotes, that is, to the beginning of the colonization of terrestrial landmass by vertebrate animals.
In Britain, procedures likely to harm vertebrate animals can not be performed in schools.
The nervous system of vertebrate animals is often divided into the central nervous system (CNS) and the peripheral nervous system (PNS).
Around 390 million years ago, the first vertebrate animals moved from water onto land, necessitating changes in their musculoskeletal systems to permit a terrestrial life.
A new study reveals that this process may have evolved long ago, as it shows that embryos from an ancient spider develop just like those of vertebrate animals.
«As soon as you're missing a single species in your data matrix, you may be missing a key function that is only represented by that species,» says Jetz, who has studied functional traits in plants and vertebrate animals, particularly birds.
«Branchial rays will figure prominently in the story of the evolutionary origin of vertebrate animal appendages, either by shedding light on the evolutionary antecedent of paired fins / limbs, or by teaching us about the genetic mechanisms that animals can use to invent new appendages,» Gillis says.
To investigate when the mammalian elements that turn cones to rods might have originated, the researchers reviewed genomic sequences from a variety of vertebrate animals.
policies regarding human subjects, live vertebrate animal subjects in research, and safe laboratory practices
While courses related to professional ethics, ethical issues in clinical research, or research involving vertebrate animals may form a part of instruction in responsible conduct of research, they generally are not sufficient to cover all of the above topics.
Vertebrate animals also made their first appearance in the Cambrian Explosion, the distant ancestors of modern fish, reptiles, birds and mammals.
The peripheral nervous system of vertebrate animals includes three kinds of nerve cells: sensory neurons, which transmit impulses from sensory receptor structures to the brain; motor neurons, which innervate the striated, or skeletal, muscles, and autonomic neurons, which regulate the functional activity of the circulatory system, the organs, the glands and the smooth muscles (such as those of the intestine).
All vertebrate animals (including humans) have two eyes these days.
The new policy of NIH application instructions will follow this consideration and is expecting that «sex as a biological variable will be factored into research design, analyses and reporting in vertebrate animal and human studies».
Human & Vertebrate Animal Tissue (6B) This form is filled out by the student researcher and explains the source of the tissue.
No longer is this extremely rare order of ancient fish crowned the slowest evolving vertebrate animal in the world.
reptile Cold - blooded vertebrate animals, whose skin is covered with scales or horny plates.
In their current studies, the Salk scientists sought to determine if vitamin A, linked to a variety of developmental disorders, played a role in left - right orientation among a variety of vertebrate animals.
Furthermore, the animal experimentation follows the European Convention for the protection of vertebrate animals used for experimental and other scientific purposes (ETS No. 123) with its appendix A. All animal experiments are and will be carried out in full accordance with the Law and the Decree, which state that the work with animals is carried out only under specific authorizations that include licenses for the personnel, housing of the animals, and also individual experiments.
2) Facility license for experimental utilization and care of vertebrate animals in research and training (mandatory for all experimental manipulations requiring anaesthesia).
KNOXVILLE — Around 390 million years ago, the first vertebrate animals moved from water onto land, necessitating changes in their musculoskeletal systems to permit a terrestrial life.
«Five years ago, we didn't know that amphibians or any vertebrate animals could evolve induced tolerance to pesticides.
Expression is in the same cell types (spermatocytes and spermatids) in the testes of the human, mouse and fish medaka, suggesting conservation of developmentally - regulated testicular expression of Boule in vertebrate animals [35], [53].
Wasserman pointed out that the conceptual principles used to study mice are transferable to other vertebrate animals.
Dopamine (DA) is a neurotransmitter with conserved behavioral roles between invertebrate and vertebrate animals.
The same sequence of DNA specifying that corkscrew shape has been exactly preserved by evolution in many vertebrate animals suggesting it has an important biological function.
The thyroid is an endocrine gland found in the neck of vertebrate animals, including humans.
Finally, «soup bones» include collagen, a protein found in connective tissue of vertebrate animals, which is abundant in bone, marrow, cartilage, tendons, and ligaments.
The modern human being is a vertebrate animal, mammal, belonging to the primates, which emerged 200,000 years ago.
To find endangered lizards (including anoles, skinks, and geckos), click on Index - Vertebrate Animals and then on Reptiles.
Noting that Spencer compared the role of Parliament to that of the «cerebral masses in a vertebrate animal,» Huxley applauded Spencer for the biological analogy, but criticized his conclusion that just as the brain «averages the interests of life, physical, intellectual, moral, social,» the appropriate sphere of government is to average the interests of various classes in society, not to do anything to improve or alter their relations.
All vertebrate animals (i.e. those with a backbone, such as humans, dogs, and cats) possess a thyroid.
A person who knowingly or intentionally kills a vertebrate animal with the intent to threaten, intimidate, coerce, harass, or terrorize a family or household member can be prosecuted for domestic violence animal cruelty, a Level 6 felony.
It is probably not accidental that tetrapod also refers to any four - footed, vertebrate animal, or that Dolos is the Greek god of deception and trickery.

Not exact matches

Parthenogenesis occurs naturally in many plants, some invertebrate animal species (including nematodes, water fleas, some scorpions, aphids, some bees, some Phasmida and parasitic wasps) and a few vertebrates (such as some fish, amphibians, reptiles and very rarely birds.
The Bible said not all species of animals but all kinds of animals, and not all animals, only land vertebrates.
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