Sentences with phrase «living cells of organisms»

Not exact matches

One of the most remarkable facts about the human body — indeed, about the great mass of living things — is that nearly every cell carries the complete genetic blueprint for the entire organism.

In reality, the lifeform belongs to a separate class of life known as Archaea, a type of single - celled organism that typically thrives in harsh environments.

It matches up with the observed entire life cycle and doubling rate (about every 8 hours) of the single celled organism.

The DNA programming required to create life capable of replicating in even the most simple single celled organism is far far more complex than anything mankind has ever built.

To the contrary, it is more fantastic than we can imagine — hundreds of billions (trillions) of galaxies with hundreds of billions (trillions) of stars, nearly all of which have planets, some right for life; planets so hot that they rain glass; stars made of diamonds; the lineage of animals from singled celled organisms to the incredible variety that exists today with their unique adaptations.

The consensus on the evolution of primitive life is that simple life forms (prokaryotes, organisms whose cells lack a distinct nucleus) inhabited the Earth about 3 - 4 billion years ago, eukaryotic cells (those with a nucleus which contains the genetic material) emerging 2 - 3 billion years ago.

I see living organisms emerge from single cells without something intelligent outside of them directing the process.

Scientific reductionism, however, wants to reduce biology to physics and chemistry, to explain the properties of «life», by thorough specification of the particulars (atoms and molecules) that are integrated into cells and organisms.

When you say miracle of life, do you mean conception of a child in todays world or are you talking about single - celled organisms at the advent of life on earth?

DNA / RNA and proteins are by far the most important components of a living organism, carrying out virtually every function in a cell.

The derivative notion of «society» is essential to his metaphysics, for it serves to link his speculative conception of actual entities with entities of ordinary experience, such as material bodies and living organisms (including cells and molecules).

Due to the time frames involved in spawning generation after generation of complex creatures, such experimentation is necessarily limited to specimens with short life spans / gestational periods like bacteria, single cell organisms and fruit flies.

We anticipate some sort of growth toward increased complexity: increasingly larger organic macromolecules, then the convergence of many macromolecules to constitute a simple living system, either as a cell with its protective wall and vital nucleus or as some functional analogue, then the convergence of many cells to form larger organisms.

(Cf. the phenomenon of the «runners» at first connected with the mother plant and then separated from it; the fluid transition between various plants and animals which appear to be one; the germ - cell inside and outside the parent organism, etc.) Living forms which present what are apparently very great differences in space and time can ontologically have the same morphological principle, so that enormous differences of external form can derive from the material substratum and chance patterns of circumstance without change of substantial form (caterpillar - chrysalis butterfly).

Heretofore, this earth has witnessed the emergence of single - celled living organisms, the growth of multicelled plant organisms, the advent of animals with centralized nervous systems making self - directed activity possible, and the flowering of humanity with its far - flung culture.

«What we have described as globalization is remarkably close to Teilhard de Chardin's planetization, in which «[mankind, born on this planet and spread over its entire surface, come [s] gradually to form round its earthly matrix, a single, major, organic unity, enclosed upon itself.4 Thus the globalization of humankind could lead to the formation of a new kind of living entity — a social organism — on the same cosmic principle as that by which atoms join to form molecules, molecules join to form mega-molecules, mega-molecules unite to form living cells, and innumerable cells constitute an organism.

We see Nature combining molecules and cells in the living body to construct separate individuals, and the same Nature, stubbornly pursuing the same course but on a higher level, combining individuals in social organisms to obtain a higher order of psychic results.

Birch and Cobb maintain that the ecological model is more adequate than the mechanical model for explaining DNA, the cell, other biological subject matter (as well as subatomic physics), because it holds that living things behave as they do only in interaction with other things which constitute their environment (LL 83) and because «the constituent elements of the structure at each level (of an organism) operate in patterns of interconnectedness which are not mechanical» (LL 83).

Stem cells can be obtained licitly, without loss of human life — for example, from an adult organism or from the blood of the umbilical cord at the time of birth.

May 28, 2013 — The widespread disappearance of stromatolites, the earliest visible manifestation of life on Earth, may have been driven by single - celled organisms called foraminifera.

RS: According to the hypothesis of formative causation, outlined in my book A New Science of Life, systems such as molecules, crystals, cells, organs and organisms are organized by specific morphogenetic fields, which give them their characteristic form and organization.

If, on the other hand, we define evolution in the Darwinian sense — as a process of random mutation and natural selection by which all living beings have arisen by chance from single - celled organisms over 100's of millions of years — we may not be on equally firm ground from a scientific perspective.

They owe their flimsy and precarious «existence» to the combinations of atoms, molecules and cells that make up living and thinking organisms.

«you can not teach Biology without evolution» - my prof. Personally, I love the idea that God could create life slowly out of a single celled living organism.

The organization of cells into complex living organisms may have taken millions of years to achieve.

This account of «life» as a characteristic of cells means that in the human organism there are billions of centers of life, not one.

Gradually organic chemicals were synthesized and eventually self - replicating complex molecules evolved, enabling the evolution of living cells, leading to multi - cellular organisms, plants and animals.

The fact that cells degenerate, that organisms decay, that our own lives ebb toward death, that civilizations eventually fall and that noble deeds and ideals fade into oblivion — all this makes us wonder how the universe could conceivably have any abiding seal of purpose.

And let's remember that evolution, while it's a theory, is a theory about the beginning and the transformation of life based on things we have observed, namely that cells change and mutate and that those mutations can produce cells that are unique and new, and that it would follow that it's possible for molecules to form into single - celled organisms which mutate and combine into multi-cellular organisms which mutate, adapt, and grow over time into new forms of life.

The Theory of Evolution only talks about how life evolved from the first single celled organism up till what we have today.

These foods contain trillions of healthy microbial organisms, live enzymes and L - glutamine which is the major amino acid that is needed to produce healthy intestinal cells.

Since the population of cells down there is small, most people thought they would just barely be able to eke out a living, that they were organisms with very few capabilities.

To help make ideas about energy more concrete, for example, the new unit will use a variety of analogies from more familiar physical systems (e.g., combustion and charging a cellphone battery) to help students understand those same energy - releasing and energy - requiring chemical reactions and energy transfer when they occur in living organisms (e.g., cellular respiration, creating a charge across a membrane in mitochondria and nerve cells) where the reactions are more complex and difficult to observe.

The fields within biology are further divided based on the scale at which organisms are studied and the methods used to study them: biochemistry examines the fundamental chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues and organ systems of an organism; and ecology examines how various organisms interrelate.

Baylin says certain genes that control cell growth get turned down periodically during certain stages of life, including embryogenesis, when organisms are growing and developing rapidly.

No testing of these nanoparticles has been done so far in living cells or organisms.

All living organisms maintain a reducing environment inside their cells, all cells contain complex systems of antioxidants to prevent chemical damage to the cells» components by oxidation.

After billions of years, during which life consisted almost entirely of single - celled organisms, animals evolved.

The living world thrived long before the origin of nucleated organisms [the eukaryotic cells, which have genetic material enclosed in well - defined membranes].

A breakthrough study that Apfeld co - authored while an instructor at Harvard Medical School provided one piece of the puzzle, thanks to a new fluorescent sensor technology that precisely measures oxidation reactions in the cells of live organisms.

Since life first emerged more than 3 billion years ago, single - celled organisms have dominated the planet for most of its history.

Synthetic biology enables researchers to tackle a huge and diverse range of applied problems: building a cell with the smallest possible genome; synthesizing proteins with extra amino acids — more than the 20 found in nature; using bacteria to produce medicines previously too complex to synthesize; even decomposing living organisms into standard, off - the - shelf «biobricks» that can be assembled on demand.

The cell is the structural and functional unit of all living organisms, and is sometimes called the «building block of life.»

«We have now developed the first model where we can observe the development of a stem cell into a mature blood cell in a living organism.»

Still, life is full of cooperation, from the single cells that joined to form higher organisms to the construction of cities by humans and intricate communal nests by ants.

To the surprise of scientists, bacteria can act as an aphrodisiac for one - celled marine organisms notable for being the closest living relative of all animals.

The majority of cells in the human body are blood cells, which comprise many different types that are continuously produced during the life of an organism.

They live inside their host's cells and have highly specialized features: They are only able to reproduce inside the host's cells, they have the smallest known genome of all organisms with a cell nucleus (eukaryotes) and they posses no mitochondria of their own (the cell's power plant).

These biochemical processes are responsible for a broad range of movement in living organisms, including moving molecules around the interior of a cell or copying DNA into another form of genetic material, RNA.

Simpler kinds of living organisms came first, and it took hundreds of millions of years of evolution on Earth to progress from single - celled life forms to complex organisms like ourselves.