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Vertebrates

Vertebrates belong to the subphylum Vertebrata – the largest subphylum of chordates containing several groups of large land animals including mammals, birds, reptiles, amphibians and fishes. Vertebrates have spinal columns and backbones. There are now around 58,000 species of vertebrates.

1,413 Questions

Why is a notochord important to vertebrates?

Notochords are important to vertebrates because it forms the main support of the body. A notochord is a flexible rod-like structure.

DO nautilus have a back bone?

Nope. No bones of any kind. That is why they have a shell.

Why does flying east take longer flying west?

The planet is rotating "to the right" when viewed from outer space with the north pole at the top. It is rotating to the east.

To fly towards a destination in the east, your destination is always moving away from you.

To fly towards a destination in the west, your destination is always moving towards you.

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An even greater influence is the constant high-speed winds high in the atmosphere, known as the "jet stream". The prevailing direction of the jet stream is west-to-east. Commercial jet airliners flying east intentionally enter the jet stream whenever possible, and get a lot of help from it, decreasing the time required to cover an eastbound distance. When flying west, however, the jet stream can't help because it's flowing the wrong way; and if Air Traffic Control places your westbound flight at an altitude where you're in the jet stream, then you're flying against it, and it increases the time required for you to get anywhere.

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The first answer is simply wrong -- it looks sensible but so did the idea that heavier objects fall faster than light ones until Galileo did the experiment that disproved that. Here's one that would disprove the "direction of rotation" theory: Imagine a large north-polar projection map of the Earth on a flat plate resting on a turntable that turns slowly (say 1 rpm) in a counterclockwise direction (as the earth itself does from that angle), and give it a raised edge so that things moving around on top of the map won't fall off the edge. Place a small wind-up car alongside the turntable fence going in an eastward direction and measure how long it takes to go around the circle -- first clockwise (against the rotation) and then what the Brits call anticlockwise (with the rotation). Of course, those opposite-direction times will be the same, because there is no jet-stream effect.

Other evidence of the error is provided by the fact that differences in east-west and west-east travel times only appear for airplanes affected by the jet stream. They do not appear in automobile or railroad timetables, nor do they appear in flying times for low-flying planes. Artificial satellites would also be exempt, except that they always travel in an eastward direction, having taken advantage of the earth's speed of rotation in that direction (1000 mph at the equator) before they are launched.

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Are penguins vertebrates or invertebrate's?

Penguins are vertebrate. Vertebrate means that the have a backbone and invertebrate means they do not. they are also know as a bird. the bird group is in the vertebrate group
Penguins are flightless aquatic birds. All penguins, including the King Penguins are, therefore, vertebrates (as are all other birds). Vertebrates have a vertebral column (spine) and an internal skeleton, a cranium (head) that contains a brain and sensory organs that is connected to a central nervous system and is situated on the fore part of the animal.
Yes, a penguin has a spine so is a vertebrate.
Yes.

Why when a fish dive it water do not get crushed?

they do not get crush because they are very strong and they can breath under water

Are arctic wolves vertebrate or invertebrate?

wolves are vertebrates because they have a spine.
Yes, it has a bony spine.
Other people ask this question, it`s vertebrate

Are geese vertebrates or invertebrates?

Yes, geese as with all other birds are vertebrates. They have an internal skeleton and a backbone.

What are people doing to help the Northern Spotted Owl?

By buying large tracts of forest where the bird lives, to protect it from logging operations, as habitat loss was a major reason for the decline of this species. Also, the closely related barred owl, Strix Varia, has moved into areas where timber has been thinned, and is hybridizing with the spotted owl. This alone can push the spotted owl closer to the edge, as the barred owl is a much more common species, and can thrive in cutover woodlots, where the spotted owl requires larger, more dense forests.

Is a tadpole a vertebrate or invertebrate?

tadpoles are not vertebrates because they do not have a backbone.