Sentences with phrase «complex animal organism»

Not exact matches

Just as a mountain climber can not jump to the top of the Matterhorn, a (relatively) simple organism like a bacterium can not even conceivably become a complex plant or animal except in very gradual stages.

It needs to be stated first that human beings are highly complex psycho - physical organisms with literally thousands of energy events interacting with each other and with and under the dominance of an «organizing center of experience» (the brain), also present in animals with central nervous systems.

Recombinant DNA research has been done primarily on bacteria, one - celled organisms smaller than animal or plant cells and simpler in structure, yet capable of very complex chemical activity.

The book «Darwin's Black Box» argues that organisms like cilium, bacterial flagellum, animal cells, and antibodies are irreducibly complex.

Let us note, in the first place, that the Bible is opposed to the common idea that man is simply a complex physical organism, just like one of the lower animals except a little more intelligent.

Then come complex multicellular organisms, societies of animals with new emergent properties at the ecosystem level, and, finally conscious beings who create culture, use symbolic language — and experience the first intimations of transcendence.

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.

Roughly 800 million years ago, in the late Proterozoic Eon, phosphorus, a chemical element essential to all life, began to accumulate in shallow ocean zones near coastlines widely considered to be the birthplace of animals and other complex organisms, according to a new study by geoscientists from the Georgia Institute of Technology and Yale University.

Animals have incredible variation in their body shapes and ways of life, including the plant - like, immobile marine sponges that lack heads, eyes, limbs and complex organs, parasitic worms that live inside other organisms (e.g. nematodes, platyhelminths), and phyla with eyes, skeletons, limbs and complex organs that dominate the land in terms of species numbers (arthropods) and body size (chordates).

Collins said that because Hydra is such a simple animal and because it is able to regenerate after complete dissociation into individual cells, it offers researchers the opportunity to use similar techniques as the ones employed in their experiments to examine how an organism develops from an unstructured group of cells into a complex body plan.

Self - assembly enables nature to build complex forms, from multicellular organisms to complex animal structures such as flocks of birds, through the interaction of vast numbers of limited and unreliable individuals.

The researchers used proteins from baker's yeast — a model organism for the more complex systems found in animals.

The extinct animals are, he says, the most ancient complex organisms ever found on Earth.

New gene - editing technologies such as CRISPR have sped the development of new crop varieties and animals, but products based on engineered organisms sometimes face a web of complex and overlapping regulations before they can reach the market.

After studying how quickly Europa's surface ice was replenished, University of Arizona researcher Richard Greenberg estimated in 2009 that enough oxygen reaches the subterranean ocean to sustain 6.6 billion pounds of «microfauna» — more complex animal - like organisms.

In eukaryote organisms (almost all large organisms, such as animals, plants, and fungi, but not bacteria), DNA forms a complex with proteins that are called histones.

But plants and animals interact in very complex ways with other organisms and their environment.

They are popular in the lab because they are single cells — so they are considerably easier to study than multi-celled organisms — but they still have the complex internal organization common to plants, animals, and fungi.

All species of large complex organisms are eukaryotes, including animals, plants and fungi, although most species of eukaryote are protist microorganisms.

A new study of 565 million - year - old fossils has identified how some of the first complex organisms on Earth — possibly some of the first animals to exist — reproduced, revealing the origins of our modern marine environment.

This is a reflection of how extremely difficult it is to understand the complex functions of a three - dimensional organism with its many different cell types and substances without animal research.

Multicellular organisms like plants and animals are complex co-operative structures made of many specialized cell types, while a single yeast cell can survive and proliferate without the help of others.

Multicellular organisms like plants and animals are complex...

Rangeomorphs were some of the earliest complex organisms on Earth, and have been considered to be some of the first animals — although it's difficult for scientists to be entirely sure.

It is speculated that this protein serves an important function in protecting living beings, from one - celled organisms to the most complex animal systems, by minimizing that particular being s exposure to potentially toxic substances.

Before now, if palaeontologists had found the fossil remains of such a complex community of organisms, they would probably assume that the site was free of the ice shelf when these animals were living there.