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The answer is probably sponges.
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∙ 10y ago
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What does the presence of only two tissue layers make cnidarians?
The presence of only two tissues layers makes cnidarians diploblastic. These tissues layers consist of an epidermis (outer layer) and a gastrodermis (inner gut layer). Mesoglea, a type of jelly-like substance is between these layers.
Does the epidural space separate dura mater from bone of vertebra?
The dura mater and the arachnoid are not separated. They are the first two layers of meningeal tissue.
What are the layers of Pluto?
pu & toe are the only two layers of Pluto get it!!!!
What level of tissue development do rotifers exhibit?
The cuticle is the outer layer of a nematodes body, even external to the epidermis. It consists of two to three layers.
What are the names of the two main phyla of land plants give examples of each?
botany and zoology
Which phyla have only two germ layers?
Phyla that have only two germ layers are Cnidaria and Ctenophora. These phyla are considered diploblastic, meaning they develop from two embryonic germ layers: endoderm and ectoderm. organs. This is in contrast to triploblastic animals, which have three germ layers (endoderm, mesoderm, and ectoderm).
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.
How many cell layers make up the onion tissue?
There is only a single layer of cells in onion tissue. However, sometimes the tissue can fold over itself and appear to have two layers.
What does the presence of only two tissue layers make cnidarians?
The presence of only two tissues layers makes cnidarians diploblastic. These tissues layers consist of an epidermis (outer layer) and a gastrodermis (inner gut layer). Mesoglea, a type of jelly-like substance is between these layers.
How many tissue layers does a hydra sea serpent have?
two layers but so have three
What members of porifera are diploblastic?
Porifera (sponges) have no specialized cells. To be diploblastic animal phyla must have a minimum of two cell layers referred to as ectoderm and endoderm. The absence of these cell types make it impossible for any members of porifera to be diploblastic.
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 is the dermis composed mainly of what tissue?
The dermis is one of two layers that make up the skin (the other being the epidermis, which lies on top). The dermis is composed of two layers: the papillary layer and the reticular layer. The papillary layer is composed of areolar tissue and the reticular layer is composed of dense irregular connective tissue.
What cells form palisade tissue?
The cells that form palisade tissue are the two upper layers of mesophyll cells, the cells that contain many chloroplasts to maximise photosynthesis.
What phylum has 2 layers of tissue?
The phylum Cnidaria has two layers of tissue: the outer epidermis and the inner gastrodermis separated by a jelly-like mesoglea layer. This simple body plan is characteristic of organisms like jellyfish and sea anemones.
How many life stages do cnidarians generally have?
Cnidarians have two cell layers with a jelly-like layer in between.
What is epitheleal tissue?
In biology and medicine, an epithelium is a tissue composed of cells that line the cavities and surfaces of structures throughout the body.Many glands are also formed from epithelial tissue. It lies on top of connective tissue, and the two layers are separated by a basement membrane.
