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An exoskeleton is an external skeleton that protects and supports the animal's body. Two phyla that have exoskeletons are Arthropoda and Heterokontophyta.
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What two features define animal phyla?
Two features that define animal phyla are body plan (organization of tissues and symmetry) and level of complexity (including presence or absence of true tissues, body cavities, and segmentation).
What are two most common phyla of animals?
The two most common phyla of animals are Arthropoda, which includes insects, spiders, and crustaceans, and Chordata, which includes vertebrates like mammals, birds, reptiles, amphibians, and fish.
What kind of body plan do most animal phyla exhibit?
Most animal phyla exhibit bilateral symmetry, where the body can be divided into two mirror-image halves along a single plane. This body plan is thought to have evolved for efficient movement and coordination in organisms.
What two animal phyla show radial symmetry?
The two animal phyla that show radial symmetry are Cnidaria (such as jellyfish and sea anemones) and Echinodermata (such as starfish and sea urchins). Radial symmetry means that the body parts are arranged symmetrically around a central axis, like spokes on a wheel.
Which phyla are diploblastic?
Cnidaria and Ctenophora are the two phyla that are diploblastic, meaning they have two germ layers during embryonic development – the ectoderm and endoderm.
What are 2 phyla in the animal kingdom?
There are more than two phyla in the animal kingdom... There are many phyla in the animal kingdom. There are a few phyla of worms and other invertebrates and then you have the vertebrate ohyla. Unless that's what your asking? Did you want the invertebrate and vertebrate in general phyla? That's the only set of 2 things I can think of.
What two features define animal phyla?
Two features that define animal phyla are body plan (organization of tissues and symmetry) and level of complexity (including presence or absence of true tissues, body cavities, and segmentation).
What two animal's have a hard exoskeleton?
arthopoda and mullasca
Is an arthropod a platyhelminthes?
No, arthropoda and platyhelminthes are two different phyla. The latter are the flatworms, the former are characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages, and include insects and crustaceans.
What are two characteristic of arthropods?
An arthropod is an invertebrate animal with an exoskeleton , a segmented body, and jointed appendages.
What are two most common phyla of animals?
The two most common phyla of animals are Arthropoda, which includes insects, spiders, and crustaceans, and Chordata, which includes vertebrates like mammals, birds, reptiles, amphibians, and fish.
Which of the 9 animal phyla use extra-cellular digestiona nd which use intra-cellular digestion?
actually seven of the 9 phyla use extracellular digestion. the two that are intracellular are porifera and placozoa
Is a sea star a arthropod?
A starfish is actually an echinoderm. Its Its water vascular system and lack of segmentation, or even an exoskeleton composed of chitin, mean that it is not an arthropod in ANY sense...two completely different phyla.
What kind of body plan do most animal phyla exhibit?
Most animal phyla exhibit bilateral symmetry, where the body can be divided into two mirror-image halves along a single plane. This body plan is thought to have evolved for efficient movement and coordination in organisms.
What two animal phyla show radial symmetry?
The two animal phyla that show radial symmetry are Cnidaria (such as jellyfish and sea anemones) and Echinodermata (such as starfish and sea urchins). Radial symmetry means that the body parts are arranged symmetrically around a central axis, like spokes on a wheel.
Which phyla are diploblastic?
Cnidaria and Ctenophora are the two phyla that are diploblastic, meaning they have two germ layers during embryonic development – the ectoderm and endoderm.
What are two functions of an exoskeleton?
The exoskeleton both protects the organs and gives the body structure.
