Usa "vertebrate" in una frase
vertebrate frasi di esempio
vertebrate
1. In the vertebrate portion of the animal world, a different approach seems to have been taken
2. There, a group of researchers among which was Philip Gingerich, a vertebrate paleontologist at the University of Michigan, dug and studied the fossil remains of whales
3. a warm-blooded vertebrate animal that has hair or fur, secretes milk, and (typically) bears live
4. common terrestrial vertebrate of the Early Triassic,
5. which killed off about 70 percent of terrestrial vertebrate
6. But what if people had never found their way to this place? What if I was the only vertebrate here bigger than a frog?
7. to the Fallopian tubes, it is part of the vertebrate female reproductive system
8. The last of these is amply represented by the four zoophyte groups, three classes of articulates, five classes of mollusks, and three vertebrate classes: mammals, reptiles, and those countless legions of fish, an infinite order of animals totaling more than 13,000 species, of which only one–tenth belong to fresh water
9. He was a stern, gaunt man, with a harsh voice, and an aggressive manner, but he had the merit of knowing how to assimilate the ideas of other men, and to pass them on in a way which was intelligible and even interesting to the lay public, with a happy knack of being funny about the most unlikely objects, so that the precession of the Equinox or the formation of a vertebrate became a highly humorous process as treated by him
10. "My own reading of the situation for what it is worth—" he inflated his chest enormously and looked insolently around him at the words—"is that evolution has advanced under the peculiar conditions of this country up to the vertebrate stage, the old types surviving and living on in company with the newer ones
11. All vertebrate animals, all insects and some other large groups of animals, pair for each birth
12. But we shall see how obscure this subject is if we look, for instance, to fishes, among which some naturalists rank those as highest which, like the sharks, approach nearest to amphibians; while other naturalists rank the common bony or teleostean fishes as the highest, inasmuch as they are most strictly fish-like, and differ most from the other vertebrate classes
13. All physiologists admit that the swim-bladder is homologous, or "ideally similar" in position and structure with the lungs of the higher vertebrate animals: hence there is no reason to doubt that the swim-bladder has actually been converted into lungs, or an organ used exclusively for respiration
14. According to this view it may be inferred that all vertebrate animals with true lungs are descended by ordinary generation from an ancient and unknown prototype which was furnished with a floating apparatus or swim-bladder
15. For instance, the eyes of Cephalopods or cuttle-fish and of vertebrate animals appear wonderfully alike; and in such widely sundered groups no part of this resemblance can be due to inheritance from a common progenitor
16. We ought also to compare the relative proportional numbers, at any two periods, of the high and low classes throughout the world: if, for instance, at the present day fifty thousand kinds of vertebrate animals exist, and if we knew that at some former period only ten thousand kinds existed, we ought to look at this increase in number in the highest class, which implies a great displacement of lower forms, as a decided advance in the organisation of the world
17. We may thus account for the distinctness of whole classes from each other—for instance, of birds from all other vertebrate animals—by the belief that many ancient forms of life have been utterly lost, through which the early progenitors of birds were formerly connected with the early progenitors of the other and at that time less differentiated vertebrate classes
18. The anterior and posterior limbs in all the higher vertebrate classes are plainly homologous
19. —Belonging to the sacrum, or the bone composed usually of two or more united vertebrae to which the sides of the pelvis in vertebrate animals are attached
20. VERTEBRATA or VERTEBRATE ANIMALS