how do lower chordates survive on their adaptive features?

how do lower chordates survive on their adaptive features?
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echinoderms, cnidaria and other forms
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The tubular and dorsal nervous system of chordates is related to the cephalization in these animals and to bilateral symmetry. The presence of neural integrating centers with concentration of neurons in the brains and the spinal cord (central nervous system, CNS) allowed the increase of the interaction complexity between these animals and the environment. Receptor (afferent conduction) and efferent (motor, regulatory and behavioral reactions) functions come out more sophisticated in chordates due to the presence of more well-developed neural networks. These features have been preserved by evolution as they provide adaptive advantage to their owners.

Description : The tubular and dorsal nervous system of chordates is related to the cephalization in these animals and to bilateral symmetry. The presence of neural integrating centers with concentration of ... These features have been preserved by evolution as they provide adaptive advantage to their owners.

Last Answer : How can the tubular-dorsal nervous system in chordates be compared to the nervous pattern present in invertebrates?

What are the adaptive features of a Fern plant?

Description : What are the adaptive features of a Fern plant?

Last Answer : Feel Free to Answer

What are the adaptive features of a cockroach?

Description : What are the adaptive features of a cockroach?

Last Answer : Feel Free to Answer

What are the adaptive features of a fish?

Description : What are the adaptive features of a fish?

Last Answer : Feel Free to Answer

What are the adaptive features of lizards?

Description : What are the adaptive features of lizards?

Last Answer : tanraj is a rebel

What are the adaptive features of lizards?

Description : What are the adaptive features of lizards?

Last Answer : tanraj is a rebel

Changes made to an information system to add the desired but not necessarily the required features is called (A) Preventative maintenance. (B) Adaptive maintenance. (C) Corrective maintenance. (D) Perfective maintenance.

Description : Changes made to an information system to add the desired but not necessarily the required features is called (A) Preventative maintenance. (B) Adaptive maintenance. (C) Corrective maintenance. (D) Perfective maintenance.

Last Answer : (D) Perfective maintenance.

Which of the following group of characters is present in all chordates in some or other stage in their life or Chordates differ from nonchordates in h

Description : Which of the following group of characters is present in all chordates in some or other stage in their life or Chordates differ from nonchordates in h

Last Answer : Which of the following group of characters is present in all chordates in some or other stage in ... D. Gill slits, vertebral column, and notochord

What do you mean by chordates? Write down their characteristics?

Description : What do you mean by chordates? Write down their characteristics?  

Last Answer : The basic characteristics of chordates are: -  Notochord: - It is rod like structure made up on semi-rigid body of cells. It is enclosed in the sheath of connective tissues. It is located ... , whose anterior part enlarge into brain. Postanal tail is also present at some stages beyond anus.  

Comparison between Chordates and Non-chordates -Biology

Description : Comparison between Chordates and Non-chordates -Biology

Last Answer : answer:

Comparison between Chordates and Non-chordates -Biology

Description : Comparison between Chordates and Non-chordates -Biology

Last Answer : answer:

How many of the following chordates have flame cells as exretory organ. Planaria, Ascaris, Amphioxus, Tapeworm, Nereis, Scoliodon.

Description : How many of the following chordates have flame cells as exretory organ. Planaria, Ascaris, Amphioxus, Tapeworm, Nereis, Scoliodon.

Last Answer : How many of the following chordates have flame cells as exretory organ. Planaria, Ascaris, Amphioxus, Tapeworm, ... A. One B. Two C. Three D. Four

In chordates, basically the pharynx is

Description : In chordates, basically the pharynx is

Last Answer : In chordates, basically the pharynx is A. Perforated B. Non-perforated C. Present in the gut ... D. A source of thyroxin which controls meta morphosis

Which of the following characters is shared by all chordates at some stage of life ?

Description : Which of the following characters is shared by all chordates at some stage of life ?

Last Answer : Which of the following characters is shared by all chordates at some stage of life ? A. Notochord B. ... C. Pharyngeal gill slits D. All of the above

Chordates are distingished from non- chordates by the presence of

Description : Chordates are distingished from non- chordates by the presence of

Last Answer : Chordates are distingished from non- chordates by the presence of A. Brain B. Dorsal tubular hollow ... Ventral nerve cord D. Dorsal soild nerve cord

The distinguishing feature of all chordates is

Description : The distinguishing feature of all chordates is

Last Answer : The distinguishing feature of all chordates is A. A ventrally placed nerve cord B. A water vascular system C. A chitinous exoskeleton D. Notochord

Chordates process

Description : Chordates process

Last Answer : Chordates process A. Dorsal nerve cord placed below gut B. Single hollow nerve cord placed dorsal to ... cord D. Single solid and ventral nerve cord

Echinoderms are closely related to chordates due to the following characters .

Description : Echinoderms are closely related to chordates due to the following characters .

Last Answer : Echinoderms are closely related to chordates due to the following characters . A. Tube- within - ... have mesodermal endoskeleton . D. All of these

Echinoderms and chordates have

Description : Echinoderms and chordates have

Last Answer : Echinoderms and chordates have A. Pseudocoel B. Shizocoelom C. Enterocoelom D. Hemocoel

An important characteristic that Hemichordates share with Chordates is

Description : An important characteristic that Hemichordates share with Chordates is

Last Answer : An important characteristic that Hemichordates share with Chordates is (a) absence of notochord (b) ... gill slits (d) pharynx without gill slits

Name the phylum that forms connecting link between Chordates and Non-chordates.

Description : Name the phylum that forms connecting link between Chordates and Non-chordates.

Last Answer : Name the phylum that forms connecting link between Chordates and Non-chordates.

Which group of chordates possess sucking and circular mouth without jaws?

Description : Which group of chordates possess sucking and circular mouth without jaws?

Last Answer : Which group of chordates possess sucking and circular mouth without jaws?

In some chordates, the notochord is replaced by cartilaginous or bony vertebral column. Name the chordates which possess this character.

Description : In some chordates, the notochord is replaced by cartilaginous or bony vertebral column. Name the chordates which possess this character.

Last Answer : In some chordates, the notochord is replaced by cartilaginous or bony vertebral column. Name the chordates which possess this character.

How do chordates reproduce?

Description : How do chordates reproduce?

Last Answer : Reproduction in beings of the phylum Chordata is sexual, with the exception of urochordates that can also reproduce asexually. In some classes (cyclostomes, osteichthyes fishes and amphibians) there is ... placental mammals are viviparous (embryos develop inside the mother's body, feeding from her).

In chordates the nervous system is dorsal and highly cephalized while in most invertebrates the nervous system is ganglial and ventral.

Description : In chordates the nervous system is dorsal and highly cephalized while in most invertebrates the nervous system is ganglial and ventral.

Last Answer : What is the group of the phylum Chordata that first colonized the terrestrial environment?

Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?

Description : Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?

Last Answer : How does that explain the complexity level of the nervous system reached by the vertebrate evolutionary branch?

What is the embryonic characteristic that evolutionarily makes echinoderms proximal to chordates?

Description : What is the embryonic characteristic that evolutionarily makes echinoderms proximal to chordates?

Last Answer : Echinoderms and chordates are deuterostomes, i.e., in their embryonic development the blastopore turns into the anus. All other animals with complete digestive system are protostomes, i. ... digestive tube that appears in the embryonic development. Phylum Echinodermata - Image Diversity: blastopore

What does radial symmetry mean? What is the type of symmetry found in chordates? Which are other phyla of the animal kingdom that present species with radial symmetry?

Description : What does radial symmetry mean? What is the type of symmetry found in chordates? Which are other phyla of the animal kingdom that present species with radial symmetry?

Last Answer : Radial symmetry means (biologically) that the animal structures are situated in a radial or circular pattern around a center point with nonexistence of sides, like right or left. An ... Echinodermata. (It is considered that the simplicity of poriferans does not characterize any symmetry.)

What are the differences between vertebrates and the other chordates?

Description : What are the differences between vertebrates and the other chordates?

Last Answer : Vertebrates are different because they have a spinal column (vertebral column). In these animals the notochord of the embryonic stage is substituted by the vertebral column in adults.

How are chordates classified?

Description : How are chordates classified?

Last Answer : Chordates are classified into four sub phyla: a) Subphylum Hemichordata: Notochord is restricted to the anterior half of the body. Ex: Balanoglossus. b) Subphylum Urochordata: Notochord is present ... is restricted only to the embryonic stage. In adults it is replaced by vertebral column.

Mention the three unique characteristics of chordates.

Description : Mention the three unique characteristics of chordates.

Last Answer : a) Presence of a solid supporting structure on the dorsal side of the body called notochord. b) Presence of dorsal, hollow, tubular nerve cord. c) Presence of openings in the pharynx called gill slits atleast in the embryonic stages.

What are chordates?

Description : What are chordates?

Last Answer : Organisms characterized by the presence of a notochord are called chordates.

Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Description : Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Last Answer : (a) Diaphragm

In which of the following, notochord is present in embryonic stage? (a) All chordates (b) Some chordates (c) Vertebrates (d) Non chordates

Description : In which of the following, notochord is present in embryonic stage? (a) All chordates (b) Some chordates (c) Vertebrates (d) Non chordates

Last Answer : (a) All chordates

Important characteristic that hemichordates share with chordates is (a) ventral tubular nerve cord (b) pharynx with gill slits (c) pharynx without gill slits (d) absence of notochord.

Description : Important characteristic that hemichordates share with chordates is (a) ventral tubular nerve cord (b) pharynx with gill slits (c) pharynx without gill slits (d) absence of notochord.

Last Answer : (b) pharynx with gill slits

An important characteristic that Hemichordates share with Chordates is : (1) Ventral tubular nerve cord (2) Pharynx with gill slits (3) Pharynx without gill slits (4) Absence of notochord

Description : An important characteristic that Hemichordates share with Chordates is : (1) Ventral tubular nerve cord (2) Pharynx with gill slits (3) Pharynx without gill slits (4) Absence of notochord

Last Answer : (2) Pharynx with gill slits

What is the end product of glycolysis (fermentation) in chordates (pron: KOR-dates) when there is INSUFFICIENT oxygen? a) lactic acid b) hydrogen c) sugar d) alcohol

Description : What is the end product of glycolysis (fermentation) in chordates (pron: KOR-dates) when there is INSUFFICIENT oxygen? a) lactic acid b) hydrogen c) sugar d) alcohol

Last Answer : ANSWER: A -- LACTIC ACID

What are the amphibian features that make them dependent on water to survive?

Description : What are the amphibian features that make them dependent on water to survive?

Last Answer : Permeable skin, body subject to dehydration, external fecundation, eggs without shells and larval stage with branchial respiration are features that make amphibians dependent on water to survive.

Forecoming generations are less adaptive than their parental generation due to :

Description : Forecoming generations are less adaptive than their parental generation due to :

Last Answer : Forecoming generations are less adaptive than their parental generation due to : A. Natural selection B. Mutation C. Genetic drift D. Adaptation

__________ do not take their decisions on measurements or estimates of the current traffic and topology. a. Static algorithms b. Adaptive algorithms c. Non - adaptive algorithms d. Recursive algorithms

Description : __________ do not take their decisions on measurements or estimates of the current traffic and topology. a. Static algorithms b. Adaptive algorithms c. Non - adaptive algorithms d. Recursive algorithms

Last Answer : c. Non - adaptive algorithms

What is the difference between innate and adaptive immunity?

Description : What is the difference between innate and adaptive immunity?

Last Answer : A: Innate immunity is the body's first line of defense against infection and involves non-specific responses such as inflammation and the activity of white blood cells, while adaptive immunity is a ... over time and involves the recognition and targeting of specific pathogens by T and B cells.

What is the difference between innate and adaptive immunity?

Description : What is the difference between innate and adaptive immunity?

Last Answer : A: Innate immunity is the first line of defense against pathogens and is non-specific, while adaptive immunity is a more specific response that develops over time after exposure to a pathogen.

Where can I find adaptive kitchen knives for small people?

Description : Where can I find adaptive kitchen knives for small people?

Last Answer : It looks like this is a fairly common problem. I typed in “kitchen knives for small hands” and got these results on Google. Good luck!

How could you take the idea of adaptive mobile websites one step further?

Description : How could you take the idea of adaptive mobile websites one step further?

Last Answer : SmartTwitter™ Wait, no, that’s an oxymoron.

The machine tool, in which calculation and setting of the operating conditions like depth ofcut, feed, speed are done during the machining by the control system itself, is called a.Computer Numerical Control System b.Direct Numerical Control System c.Machining Center System d.Adaptive Control System

Description : The machine tool, in which calculation and setting of the operating conditions like depth ofcut, feed, speed are done during the machining by the control system itself, is called a.Computer Numerical Control System b.Direct Numerical Control System c.Machining Center System d.Adaptive Control System

Last Answer : d.Adaptive Control System

Give examples of adaptive radiation. -Biology

Description : Give examples of adaptive radiation. -Biology

Last Answer : A striking example is the radiation, beginning in the Paleogene Period (beginning 66 million years ago), of basal mammalian stock into forms adapted to running, leaping, climbing, swimming, and ... include Australian marsupials, cichlid fish, and Darwin's finches (also known as Galapagos finches).

Why is apical dominance adaptive? -Biology

Description : Why is apical dominance adaptive? -Biology

Last Answer : answer:

Why is apical dominance adaptive? -Biology

Description : Why is apical dominance adaptive? -Biology

Last Answer : answer:

Assertion :- Tasmanian wolf and Placental wolf are the good example of convergent evolution. Reason :- More than one adaptive radiation apperared to h

Description : Assertion :- Tasmanian wolf and Placental wolf are the good example of convergent evolution. Reason :- More than one adaptive radiation apperared to h

Last Answer : Assertion :- Tasmanian wolf and Placental wolf are the good example of convergent evolution. Reason :- ... D. If both Assertion & Reason are false.

Assertion :- Australian marsupials can be taken as an example of adaptive radiation. Reason :- A number of marsupials, evolved from an ancestral stock

Description : Assertion :- Australian marsupials can be taken as an example of adaptive radiation. Reason :- A number of marsupials, evolved from an ancestral stock

Last Answer : Assertion :- Australian marsupials can be taken as an example of adaptive radiation. Reason :- A number ... D. If both Assertion & Reason are false.