23. Chordates
... Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisces with fins and Tetrapoda, usually with two pair of limbs. Many of these groupings are paraphyletic. Alternative monophyletic taxa are suggested. Some cladistic classif ...
... Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisces with fins and Tetrapoda, usually with two pair of limbs. Many of these groupings are paraphyletic. Alternative monophyletic taxa are suggested. Some cladistic classif ...
23. Chordates
... Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisces with fins and Tetrapoda, usually with two pair of limbs. Many of these groupings are paraphyletic. Alternative monophyletic taxa are suggested. Some cladistic classif ...
... Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisces with fins and Tetrapoda, usually with two pair of limbs. Many of these groupings are paraphyletic. Alternative monophyletic taxa are suggested. Some cladistic classif ...
Chordates
... Protochordata (Acraniata) are separated from Vertebrata (Craniata) that have a skull. Vertebrates may be divided into Agnatha (jawless) and Gnathostomata (having jaws). Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisc ...
... Protochordata (Acraniata) are separated from Vertebrata (Craniata) that have a skull. Vertebrates may be divided into Agnatha (jawless) and Gnathostomata (having jaws). Vertebrates are also divided into Amniota, having an amnion, and Anamniota lacking an amnion. Gnathostomata is subdivided into Pisc ...
Hunting jellyfish - Ceylon Medical Journal
... the safest ploy was to swim behind my two companions, making them into a human jellyfish shield. ...
... the safest ploy was to swim behind my two companions, making them into a human jellyfish shield. ...
Chapter 29 PowerPoint
... Small, transparent, and often luminescent Most of body composed of mesoglea Largest animals propelled by beating of cilia Capture prey with tentacles ...
... Small, transparent, and often luminescent Most of body composed of mesoglea Largest animals propelled by beating of cilia Capture prey with tentacles ...
The squid is one of the most highly developed invertebrates. It is in
... Squid The squid is one of the most highly developed invertebrates. It is in the phylum Mollusca, which is derived from the Latin word meaning “soft body”. It belongs to the class Cephalopoda, meaning “head-footed”, because its head is pushed down toward the foot. This class also includes the octopus ...
... Squid The squid is one of the most highly developed invertebrates. It is in the phylum Mollusca, which is derived from the Latin word meaning “soft body”. It belongs to the class Cephalopoda, meaning “head-footed”, because its head is pushed down toward the foot. This class also includes the octopus ...
Octopus - debchelsblake
... Two eyes and four pairs of arms. Has a hard beak. The mouth is at the center point of its arms. Suction cups on their tentacles. ...
... Two eyes and four pairs of arms. Has a hard beak. The mouth is at the center point of its arms. Suction cups on their tentacles. ...
File
... A squid is any of a variety of cephalopod with a long, soft, thin body and 10 arms (eight shorter arms and two long tentacles) and two fins on its head. Squid vary in size from very small to over 65 feet in length. They prey upon fish and crustaceans. Some squid have the ability to emit an inky clou ...
... A squid is any of a variety of cephalopod with a long, soft, thin body and 10 arms (eight shorter arms and two long tentacles) and two fins on its head. Squid vary in size from very small to over 65 feet in length. They prey upon fish and crustaceans. Some squid have the ability to emit an inky clou ...
Kingdom Animalia Review
... 6. As animals became more complex, why was the development of a coelom important? 7. Describe the three types of body symmetry. 8. Which form of symmetry is characteristic of the highest animals? 9. Explain why animals with radial symmetry show no signs of cephalization. 10. List the main body areas ...
... 6. As animals became more complex, why was the development of a coelom important? 7. Describe the three types of body symmetry. 8. Which form of symmetry is characteristic of the highest animals? 9. Explain why animals with radial symmetry show no signs of cephalization. 10. List the main body areas ...
Mollusca - Ms. Marcos` Biology Wiki
... means stomach-foot ► They usually have one shell, e.g. snails ► They have a variety of ...
... means stomach-foot ► They usually have one shell, e.g. snails ► They have a variety of ...
Classification
... Classification is sorting out all organisms into groups according to the similarities between them. Organisms are divided into two main kingdoms: the animal kingdom and the plant kingdom which in turn can further be divided until species level is reached ...
... Classification is sorting out all organisms into groups according to the similarities between them. Organisms are divided into two main kingdoms: the animal kingdom and the plant kingdom which in turn can further be divided until species level is reached ...
Section 1 and 2 PowerPoint
... • Ganglia – groups of nerves bundled together. Animals can have a brain and ganglia or just have ganglia depending on how advanced the animal is • Gut – pouch lined with digestive enzymes • Coelom – cavity that allows organs such as the gut, heart etc to work without interference from body movement ...
... • Ganglia – groups of nerves bundled together. Animals can have a brain and ganglia or just have ganglia depending on how advanced the animal is • Gut – pouch lined with digestive enzymes • Coelom – cavity that allows organs such as the gut, heart etc to work without interference from body movement ...
المحاضرة السادسة عشر Sixteenth lecture
... Most gastropods are protected by a spiraled shell صدفة حلزونية. Other species have lost their shells entirely and may have chemical defenses against predators. Many gastropods have distinct heads with eyes at the tips of tentacles. They move by their foot. ...
... Most gastropods are protected by a spiraled shell صدفة حلزونية. Other species have lost their shells entirely and may have chemical defenses against predators. Many gastropods have distinct heads with eyes at the tips of tentacles. They move by their foot. ...
Mollusks
... Two shells are connected to adductor muscle which can close shell and may also help in swimming Most are filter feeders which use tubes called siphons to remove food from water Many of these are important food sources for people ...
... Two shells are connected to adductor muscle which can close shell and may also help in swimming Most are filter feeders which use tubes called siphons to remove food from water Many of these are important food sources for people ...