So soon; however, as we approach the higher and more fully developed groups, we see indications of the often repeated extinction of lower by higher forms.
The answer, probably, is, that these low forms occupy places in nature which cannot be filled by higher forms, and that they have few or no competitors; they therefore continue to exist.
Higher forms reproduce by spores, or germ-cells, which give rise to new individuals on germination.
In general, it may be said that the breathing process of mollusks does not markedly differ from the respiratory methods of higher forms of animals.
In the simplest forms the parts which perform the different functions cannot be distinguished one from the other, and even in higher forms there is but little differentiation.
In other animals a nervous system is developed, crude and diffuse in lower forms, extremely delicate, complex and definitely ordered in higher forms.
The formation of the blastodermic vesicle may perhaps be explained on the view that in the Proto-mammalia the yolk-sack was large, and that its blood-vessels took the place of the placenta of higher forms.
This condition is more or less perfectly maintained by many Coelenterates, and is reassumed by degradation of higher forms (Echinoderms, some Cirrhipedes, some Tunicates).
But if the older ancestors have so generally disappeared, and their surviving relatives have been so greatly modified, how can we make even a shrewd guess at the ancestry of higher forms?
In higher forms it becomes of continually greater importance, until finally nearly all the organs of the body develop from it.
The embryos of higher forms, he said, pass through and beyond certain stages of structure, which are permanent in lower and older members of the same group.
It had long been known that all higher forms start in life as single cells, egg and spermatozoon.
It may be said that it is movement and action in accordance with some established "Law of Nature"--granted, but is not that also true of the physical processes and growth of higher forms of life?
In the same way then, we may expect changes in higher forms to be evolved by similar united action of internal and external forces.
Therefore, if this is so, there must probably exist in higher forms a similar tendency to such change.
There is, however, no similar evidence at present as to higher forms; while, as we have seen in Chapter VII.
This relation between the food supply and the sexes is found persisting in higher forms, and, in this connection, the well-known experiments of Young on tadpoles and of Siebald on wasps may be cited.
In the half-civilized and higher savage communities of the eastern and western parts of the continent totemism proper, if it has ever been predominant, has been expelled or depressed by higher forms of organization.
Even in higher forms of religion, as the Vedic, sacrifice and other ceremonies are supposed to have a magical power over the gods.
It is the theory of the natural selection of the best adapted through the struggle for existence, which is of itself a natural selection, and results in the sifting out of particular forms and of higher forms.
From the atoms into the elements; from the lower elements into those forming protoplasm; from the protoplasm to the lower forms of animal life; from these lower forms on to higher forms--this is the story.
This Instinctive impulse and action is seen everywhere, manifesting upon Higher and still higher lines, as higher forms of organisms are built up.
It is to be replaced by some “higher forms of labor discipline,” forms which will not attempt the impossible task of conducting factories on “debating-society lines.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "higher forms" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.