Lancelet is a chordate but not a vertebrate because it lacks a backbone
Explanation:
The subphyla of the phylum Chordata are - Vertebrata, Urochordata and cephalochordate
Those chordates with a structural backbone belong to Vertebrata.
Urochordates and cephalochordates lack a backbone and hence are termed invertebrate chordates.
Lancelet is an invertebrate chordate of the subphylum – Cephalochordata.
The lancelets consist of a notochord that extends right from the head till the tail at the dorsal surface. The notochord acts like the backbone and provides support and a semi-flexible structure to aid in the movement of the organism.
They lack a developed nervous system like vertebrates but only has a dorsal nerve tube
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this is the metric length system:
nanometer, micrometer, millimeter, centimeter, decimeter, meter, kilometer.
hope this helps. btw is that lil uzi
Answer:
The answer is b)Betaproteobacteria and e)Gammaproteobacteria
Explanation:
Nitrification, which is defined as the microbial oxidation of ammonia to form a nitrate, plays an important role in the global nitrogen cycle. There are two different groups of bacteria that can oxidize ammonia, as a first step in the nitrogen cycle. These groups are known as the Beta-proteobacteria (genera <em>Nitrosomonas</em> and <em>Nitrosaspira</em>) and the Gamma-proteobacteria (genus <em>Nitrosococcus</em>).