The modern seed plant phyla of ginkgos, cycads, conifers, and gnetophytes are collectively known as gymnosperms.
Phylum is a taxonomic rank below state and above magnificence in the organic class, particularly of animals. In plant life, the corresponding rank is department. instance: Phylum Chordata consists of magnificence Mammalia (mammals), magnificence Aves (birds), magnificence Ascidiacea (sea squirts), and so forth.
At its maximum simplicity, a phylum may be described in ways: as a collection of organisms with a positive degree of morphological or developmental similarity (the phenetic definition), or a collection of organisms with a certain diploma of evolutionary relatedness (the phylogenetic definition).
The phrase become later modified to phylum. There are approximately 35 animal phyla, 12 plant phyla, and seven phyla of fungi. The microorganism, including the archaea, are grouped into roughly 34 phyla, despite the fact that the relationships between these organizations aren't as nicely hooked up.
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Answer:
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Explanation:
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Answer:
Jupiter - Giant red spot
Mars - Most habitable other than earth
Mercury - Smallest terrestrial planet
Pluto - Is a Kupiter belt object
Saturn - Most visible rings
I think it’s B.heating and cooling it is used over 40%
Answer:
The radial symmetry animals get information through their receptor cells and neurons present all over their body.
Explanation:
Radial symmetry animals can be cut in different directions. The central axis separates it into 2 equal halves and again it can be cut into 4 directions.
e.g. Hydra, sea urchin, starfish, etc
They are invertebrates have sense organs, but these sense organs are not well defined. Each symmetry of the body has sense organs. These radial symmetry organisms have oral and aboral parts.
Sea urchins, starfishes, Hydra are light sensitive. They possess photoreceptor cells in their epithelial linings. Starfishes also sensitive to touch, light, and temperature. Their spines and tube feet have motor nerves, which control their movement.
Eyespots in starfishes also help in detecting objects. It is composed of epithelial cells and responds to light. They lack a brain but have a complex nervous system. This nervous system consists of a sensory nerve and motor nerve. It spreads all over the body. Hence starfishes can react according to the stimuli.
