Organisms characterized by the presence of a notochord are called

Organisms characterized by the presence of a notochord are called
by

1 Answer

Answer :

chordates.
by

Related questions

An important criterion for modern day classification is (a) resemblances in morphology (b) anatomical and physiological traits (c) breeding habits (d) presence or absence of notochord.

Description : An important criterion for modern day classification is (a) resemblances in morphology (b) anatomical and physiological traits (c) breeding habits (d) presence or absence of notochord.

Last Answer : (b) anatomical and physiological traits

What is A forest or jungle near the equator that is characterized by large amounts of rain and little variation in temperature and that contains the greatest known diversity of organisms?

Description : What is A forest or jungle near the equator that is characterized by large amounts of rain and little variation in temperature and that contains the greatest known diversity of organisms?

Last Answer : Such a forest is called a Tropical Rain Forest

Cervical vertebrae are characterized by the presence of `:-`

Description : Cervical vertebrae are characterized by the presence of `:-`

Last Answer : Cervical vertebrae are characterized by the presence of `:-` A. Long neural spine B. Odontoid process C. Vertebro-arterial-canals D. Flat centrum

How are the three main arthropod classes characterized according to the presence of antennae?

Description : How are the three main arthropod classes characterized according to the presence of antennae?

Last Answer : Crustaceans have two pairs of antennae; insects have one pair; arachnids do not have antennae.

How are the three main arthropod classes characterized according to the presence of wings?

Description : How are the three main arthropod classes characterized according to the presence of wings?

Last Answer : Crustaceans and arachnids do not have wings. Most insects have wings.

Concerning germ layers and the presence of coelom how are arthropods characterized?

Description : Concerning germ layers and the presence of coelom how are arthropods characterized?

Last Answer : Arthropods are triploblastic (they have three germ layers) and coelomate beings.

Early granulation tissue is BEST characterized by the presence of: C A. Plasma cells and macrophages B. T lymphocytes and eosinophils C. Capillary buds and fibroblasts D. None of these

Description : Early granulation tissue is BEST characterized by the presence of: C A. Plasma cells and macrophages B. T lymphocytes and eosinophils C. Capillary buds and fibroblasts D. None of these

Last Answer : Capillary buds and fibroblast

Ascaris is characterized by (a) presence of true coelom but absence of metamerism (b) presence of true coelom and metamerism (metamerisation) (c) absence of true coelom but presence of metamerism (d) presence of neither true coelom nor metamerism.

Description : Ascaris is characterized by (a) presence of true coelom but absence of metamerism (b) presence of true coelom and metamerism (metamerisation) (c) absence of true coelom but presence of metamerism (d) presence of neither true coelom nor metamerism.

Last Answer : (d) presence of neither true coelom nor metamerism.

The mutarotation of glucose is characterized by : (a) a change from an aldehyde to ketone structure. (b) a change of specific rotation from a (+) to a (–) value. (c) the presence of an intramolecular bridge structure. (d) the irreversible change from α-D to the β-D form.

Description : The mutarotation of glucose is characterized by : (a) a change from an aldehyde to ketone structure. (b) a change of specific rotation from a (+) to a (–) value. (c) the presence of an intramolecular bridge structure. (d) the irreversible change from α-D to the β-D form.

Last Answer : the presence of an intramolecular bridge structure.

Emphysema is described as: a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD. b) A disease that results in a common clinical outcome of reversible airflow obstruction. Asthma is the disease described. c) The presence of cough and sputum production for at least a combined total of two or three months in each of two consecutive years. Bronchitis is the disease described. d) Chronic dilatation of a bronchus or bronchi Bronchiectasis is the condition described.

Description : Emphysema is described as: a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD. b) A disease that results in ... disease described. d) Chronic dilatation of a bronchus or bronchi Bronchiectasis is the condition described.

Last Answer : a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD.

Cell wall of Fungi are characterized by the presence of A Sugurs B Pepdigoglycan C Chitin D Lipopolysaccharide

Description : Cell wall of Fungi are characterized by the presence of A Sugurs B Pepdigoglycan C Chitin D Lipopolysaccharide

Last Answer : C Chitin

Herpes simplex keratitis is characterized by: a. Presence of pus in the anterior chamber b. No tendency to recurrence c. Corneal hyposthesia d. Tendency to perforate

Description : Herpes simplex keratitis is characterized by: a. Presence of pus in the anterior chamber b. No tendency to recurrence c. Corneal hyposthesia d. Tendency to perforate 

Last Answer : ANSWER: C

The subphylum in which notochord is restricted only to the embryonic stage is

Description : The subphylum in which notochord is restricted only to the embryonic stage is

Last Answer : vertebrata.

The subphylum in which notochord is present through the length of the body is

Description : The subphylum in which notochord is present through the length of the body is

Last Answer : Cephalochordata.

The subphylum in which notochord is present only in the tail region of the larvae and absent in adults is

Description : The subphylum in which notochord is present only in the tail region of the larvae and absent in adults is

Last Answer : Urochordata.

The subphylum in which notochord is restricted to the anterior half of the body is

Description : The subphylum in which notochord is restricted to the anterior half of the body is

Last Answer : Hemichordata.

Does Vertibrata become embryonic notochord ?

Description : Does Vertibrata become embryonic notochord ?

Last Answer : Answer : In the vertebrate phase, the embryonic notochord turns into a nerve.

in which of the following the notochord is present in embryonic stage

Description : in which of the following the notochord is present in embryonic stage

Last Answer : in which of the following the notochord is present in embryonic stage A. All chordates B. Some chordates C. Vertebrates D. Non- chordates

in urochordata notochord is found in

Description : in urochordata notochord is found in

Last Answer : in urochordata notochord is found in A. Head of adult B. Tail of adult C. Tail of larva D. Test of adult

Notochord occurs in the adult animal of

Description : Notochord occurs in the adult animal of

Last Answer : Notochord occurs in the adult animal of A. Protochordates B. Agnatha C. Chondrichthyes D. Osteichthyes

Which of the following animals is devoid of notochord and nerve cord in its adult stage ?

Description : Which of the following animals is devoid of notochord and nerve cord in its adult stage ?

Last Answer : Which of the following animals is devoid of notochord and nerve cord in its adult stage ? A. ... amphioxus ) C. Assymetron D. All of the above

Notochord, skeletal system and dermis of skin are derived from

Description : Notochord, skeletal system and dermis of skin are derived from

Last Answer : Notochord, skeletal system and dermis of skin are derived from A. Mesoderm B. Endoderm C. Ectodermq D. All the above.

Notochord develops from

Description : Notochord develops from

Last Answer : Notochord develops from A. Primary ectoderm B. Primary endoderm C. primary mesoderm D. Both A and B

Notochord grows from

Description : Notochord grows from

Last Answer : Notochord grows from A. Neuropore B. Prechordal plate C. Hypochordal rod D. Chorda-mesoderm.

Formation of notochord is

Description : Formation of notochord is

Last Answer : Formation of notochord is A. Neurulation B. Notogenesis C. Morulation D. Blastulation

$ Notochord is present in vertebrates. ! Notochord is always formed of bones.

Description : $ Notochord is present in vertebrates. ! Notochord is always formed of bones.

Last Answer : $ Notochord is present in vertebrates. ! Notochord is always formed of bones. A. If both A and R are ... is wrong D. If both A and R are wrong.

In which group, notochord is present only in the tail of larva.

Description : In which group, notochord is present only in the tail of larva.

Last Answer : In which group, notochord is present only in the tail of larva.

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.

Does a kangaroo have a dorsal nerve cord notochord?

Description : Does a kangaroo have a dorsal nerve cord notochord?

Last Answer : dorsal nerve cord

What is notochord ?

Description : What is notochord ?

Last Answer : How is this structure formed? Notochord is a rodlike structure that forms the supporting axis of the embryo and gives birth to the vertebral column in vertebrates. It is formed by differentiation of mesodermal cells.

What is notochord ?

Description : What is notochord ?

Last Answer : How is this structure formed? Notochord is a rodlike structure that forms the supporting axis of the embryo and gives birth to the vertebral column in vertebrates. It is formed by differentiation of mesodermal cells.

What is the destination of the notochord in vertebrates and in protochordates?

Description : What is the destination of the notochord in vertebrates and in protochordates?

Last Answer : In vertebrates the notochord disappears and gives birth to the spinal column (vertebral column). In protochordates the notochord remains for the rest of the life.

An invertebrate does not have – (1) Notochord (2) Body cavity (3) Haernocoel (4) Gills

Description : An invertebrate does not have – (1) Notochord (2) Body cavity (3) Haernocoel (4) Gills

Last Answer : (1) Notochord Explanation: An invertebrate does not have back bone and cell wall

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

Which one of the following phyla is correctly matched with its two general characteristics? (a) Echinodermata - pentamerous radial symmetry and mostly internal fertilization (b) Mollusca - normally oviparous and development through a trochophore or veliger larva (c) Arthropoda - body divided into head, thorax and abdomen and respiration by tracheae (d) Chordata - notochord at some stage and separate anal and urinary openings to the outside.

Description : Which one of the following phyla is correctly matched with its two general characteristics? (a) Echinodermata - pentamerous radial symmetry and mostly internal fertilization (b) Mollusca - normally ... Chordata - notochord at some stage and separate anal and urinary openings to the outside.

Last Answer : (c) Arthropoda - body divided into head, thorax and abdomen and respiration by tracheae

Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is replaced by a vertebral column in adult frog. (c) It is absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus.

Description : Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is ... absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus.

Last Answer : (c) It is absent throughout life in humans from the very beginning.

Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired appendages. Cyclostomata (b) Body covered with feathers; skin moist and glandular, fore- limbs form wings; (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia (d) Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyeslungs with air sacs. Aves

Description : Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired ... Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyes

Last Answer : (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia

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

Which of the following statements are true for the Phylum Chordata? (A) In Urochordata, notochord extends from head to tail and it is present throughout their life. (B) In Vertebrata, notochord is present during the embryonic period only. (C) Central nervous system is dorsal and hollow. (D) Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata. (a) (D) and (C) (b) (C) and (A) (c) (A) and (B) (d) (B) and (C)

Description : Which of the following statements are true for the Phylum Chordata? (A) In Urochordata, notochord extends from head to tail and it is present throughout their life. (B) In Vertebrata, notochord is present during the embryonic period only. (C ... (C) (b) (C) and (A) (c) (A) and (B) (d) (B) and (C)

Last Answer : (d) (B) and (C)

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

Notochord is found in the tail regionof a) Chordata b) Urochordata c) Cephalochordata d) Vertebrata

Description : Notochord is found in the tail regionof a) Chordata b) Urochordata c) Cephalochordata d) Vertebrata

Last Answer : b) Urochordata

An invertebrate does not have (1) Notochord (2) Body cavity (3) Haemocoel (4) Gills

Description : An invertebrate does not have (1) Notochord (2) Body cavity (3) Haemocoel (4) Gills

Last Answer : Notochord

An ecosystem ,such as an aquarium is self-substaining if it involves the interaction between organisms , a flow of energy , and the presence of

Description : An ecosystem ,such as an aquarium is self-substaining if it involves the interaction between organisms , a flow of energy , and the presence of

Last Answer : An ecosystem ,such as an aquarium is self-substaining if it involves the interaction between ... plants C. materials cycles D. pioneer organisms

The organisms which can grow best in the presence of a low concentration of oxygen a. Aerophilic b. Microaerophilic c. Aerobic d. Anaerobic

Description : The organisms which can grow best in the presence of a low concentration of oxygen a. Aerophilic b. Microaerophilic c. Aerobic d. Anaerobic

Last Answer : Ans: B

The organisms which can grow both in presence and absence of oxygen a. Aerobes b. Anaerobes c. Faculative anaerobes d. Strict aerobes

Description : The organisms which can grow both in presence and absence of oxygen a. Aerobes b. Anaerobes c. Faculative anaerobes d. Strict aerobes

Last Answer : Ans: A

Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Description : Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an ... 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Growth of __________ is promoted by the presence of manganese in water. (A) Files (B) Algae (C) Micro-organisms (D) Mosquitoes

Description : Growth of __________ is promoted by the presence of manganese in water. (A) Files (B) Algae (C) Micro-organisms (D) Mosquitoes

Last Answer : (C) Micro-organisms

Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive nitro radical C. It is rapidly inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Description : Metronidazole is selectively active against anaerobic organisms because: A. Aerobes have an active transport mechanism to pump it out of their cell B. Only anaerobes reduce it to generate the reactive ... inactivated in the presence of oxygen D. It binds to DNA of anaerobes with high affinity

Last Answer : B. Only anaerobes reduce it to generate the reactive nitro radical