261855
Choose the incorrect statements regarding Hirudinea A. Male reproductive system has cirrus B. They are exclusively marine and tubicolous C. Fertilization is external and development is direct D. Clitellum is conspicuous during breeding season only.
1 A, C
2 B, D
3 C, D
4 B, C
Explanation:
D Hirudinea (Leeches) are segmented parasitic belonging phylum Annelida. Hirudinea as hermaphrodites and have clitellum. Clitellum is thickened grlandular present neare head inhirudinea and function is secreted a viscid sac which storeegg. Clitelum is part of reporoductive system that can seen when the worm is sexually active or mature. Maximum leach live in fresh water but some are terrestrial or manins.
Shift-II
Animal kingdom
261859
Animals of this class in Annelida have definite number of segments.
1 Cestoda
2 Polychaeta
3 Oligochaeta
4 Hirudinea
Explanation:
D Leeches are segmented parasitic worms that comprises the sub-class Hirudinea within the phylum Annelida. Leeches have 33 body segments, and Hirudinea are monoecious. They have anterior and posterior suckers on ventral side. The organisms lay eggs in cocoons.
TS EAMCET-09.08.2021 Shift-I
Animal kingdom
261861
A definite number of body segments is found in
1 slug
2 leech
3 earthworm
4 tapeworm
Explanation:
B The body of leech is divided metamerically into 33 true segments, somites or metameres. The first five segments are jointed to form the anterior sucker, eyes and mouth. The next 21 segments, followed by the last seven segments, are fused to form the posterior sucker. Their longitudinal muscles along with anterior and posterior suckers help in locomotion. They do not have any specific respiratory organ.
Uttarakhand PMT-2011
Animal kingdom
261862
Metameric segmentation is the characteristic of
1 Platyhelminthes and Arthropoda
2 Echinodermata and Annelida
3 Annelida and Arthropoda
4 Mollusca and chordata
Explanation:
C Metameric segmentation is characteristic of Annelids and Arthropods. The phenomenon known as metamerism occurs when an organisms body is organized into a linear series of body segments. Such animals bodies have organs and tissues that are observed to be repeated after regular intervals, or segments, and each segment is referred to as a metamere or somite.
261855
Choose the incorrect statements regarding Hirudinea A. Male reproductive system has cirrus B. They are exclusively marine and tubicolous C. Fertilization is external and development is direct D. Clitellum is conspicuous during breeding season only.
1 A, C
2 B, D
3 C, D
4 B, C
Explanation:
D Hirudinea (Leeches) are segmented parasitic belonging phylum Annelida. Hirudinea as hermaphrodites and have clitellum. Clitellum is thickened grlandular present neare head inhirudinea and function is secreted a viscid sac which storeegg. Clitelum is part of reporoductive system that can seen when the worm is sexually active or mature. Maximum leach live in fresh water but some are terrestrial or manins.
Shift-II
Animal kingdom
261859
Animals of this class in Annelida have definite number of segments.
1 Cestoda
2 Polychaeta
3 Oligochaeta
4 Hirudinea
Explanation:
D Leeches are segmented parasitic worms that comprises the sub-class Hirudinea within the phylum Annelida. Leeches have 33 body segments, and Hirudinea are monoecious. They have anterior and posterior suckers on ventral side. The organisms lay eggs in cocoons.
TS EAMCET-09.08.2021 Shift-I
Animal kingdom
261861
A definite number of body segments is found in
1 slug
2 leech
3 earthworm
4 tapeworm
Explanation:
B The body of leech is divided metamerically into 33 true segments, somites or metameres. The first five segments are jointed to form the anterior sucker, eyes and mouth. The next 21 segments, followed by the last seven segments, are fused to form the posterior sucker. Their longitudinal muscles along with anterior and posterior suckers help in locomotion. They do not have any specific respiratory organ.
Uttarakhand PMT-2011
Animal kingdom
261862
Metameric segmentation is the characteristic of
1 Platyhelminthes and Arthropoda
2 Echinodermata and Annelida
3 Annelida and Arthropoda
4 Mollusca and chordata
Explanation:
C Metameric segmentation is characteristic of Annelids and Arthropods. The phenomenon known as metamerism occurs when an organisms body is organized into a linear series of body segments. Such animals bodies have organs and tissues that are observed to be repeated after regular intervals, or segments, and each segment is referred to as a metamere or somite.
261855
Choose the incorrect statements regarding Hirudinea A. Male reproductive system has cirrus B. They are exclusively marine and tubicolous C. Fertilization is external and development is direct D. Clitellum is conspicuous during breeding season only.
1 A, C
2 B, D
3 C, D
4 B, C
Explanation:
D Hirudinea (Leeches) are segmented parasitic belonging phylum Annelida. Hirudinea as hermaphrodites and have clitellum. Clitellum is thickened grlandular present neare head inhirudinea and function is secreted a viscid sac which storeegg. Clitelum is part of reporoductive system that can seen when the worm is sexually active or mature. Maximum leach live in fresh water but some are terrestrial or manins.
Shift-II
Animal kingdom
261859
Animals of this class in Annelida have definite number of segments.
1 Cestoda
2 Polychaeta
3 Oligochaeta
4 Hirudinea
Explanation:
D Leeches are segmented parasitic worms that comprises the sub-class Hirudinea within the phylum Annelida. Leeches have 33 body segments, and Hirudinea are monoecious. They have anterior and posterior suckers on ventral side. The organisms lay eggs in cocoons.
TS EAMCET-09.08.2021 Shift-I
Animal kingdom
261861
A definite number of body segments is found in
1 slug
2 leech
3 earthworm
4 tapeworm
Explanation:
B The body of leech is divided metamerically into 33 true segments, somites or metameres. The first five segments are jointed to form the anterior sucker, eyes and mouth. The next 21 segments, followed by the last seven segments, are fused to form the posterior sucker. Their longitudinal muscles along with anterior and posterior suckers help in locomotion. They do not have any specific respiratory organ.
Uttarakhand PMT-2011
Animal kingdom
261862
Metameric segmentation is the characteristic of
1 Platyhelminthes and Arthropoda
2 Echinodermata and Annelida
3 Annelida and Arthropoda
4 Mollusca and chordata
Explanation:
C Metameric segmentation is characteristic of Annelids and Arthropods. The phenomenon known as metamerism occurs when an organisms body is organized into a linear series of body segments. Such animals bodies have organs and tissues that are observed to be repeated after regular intervals, or segments, and each segment is referred to as a metamere or somite.
261855
Choose the incorrect statements regarding Hirudinea A. Male reproductive system has cirrus B. They are exclusively marine and tubicolous C. Fertilization is external and development is direct D. Clitellum is conspicuous during breeding season only.
1 A, C
2 B, D
3 C, D
4 B, C
Explanation:
D Hirudinea (Leeches) are segmented parasitic belonging phylum Annelida. Hirudinea as hermaphrodites and have clitellum. Clitellum is thickened grlandular present neare head inhirudinea and function is secreted a viscid sac which storeegg. Clitelum is part of reporoductive system that can seen when the worm is sexually active or mature. Maximum leach live in fresh water but some are terrestrial or manins.
Shift-II
Animal kingdom
261859
Animals of this class in Annelida have definite number of segments.
1 Cestoda
2 Polychaeta
3 Oligochaeta
4 Hirudinea
Explanation:
D Leeches are segmented parasitic worms that comprises the sub-class Hirudinea within the phylum Annelida. Leeches have 33 body segments, and Hirudinea are monoecious. They have anterior and posterior suckers on ventral side. The organisms lay eggs in cocoons.
TS EAMCET-09.08.2021 Shift-I
Animal kingdom
261861
A definite number of body segments is found in
1 slug
2 leech
3 earthworm
4 tapeworm
Explanation:
B The body of leech is divided metamerically into 33 true segments, somites or metameres. The first five segments are jointed to form the anterior sucker, eyes and mouth. The next 21 segments, followed by the last seven segments, are fused to form the posterior sucker. Their longitudinal muscles along with anterior and posterior suckers help in locomotion. They do not have any specific respiratory organ.
Uttarakhand PMT-2011
Animal kingdom
261862
Metameric segmentation is the characteristic of
1 Platyhelminthes and Arthropoda
2 Echinodermata and Annelida
3 Annelida and Arthropoda
4 Mollusca and chordata
Explanation:
C Metameric segmentation is characteristic of Annelids and Arthropods. The phenomenon known as metamerism occurs when an organisms body is organized into a linear series of body segments. Such animals bodies have organs and tissues that are observed to be repeated after regular intervals, or segments, and each segment is referred to as a metamere or somite.
