In order to be considered part of the phylum Chordata, an animal must have a backbone. What other characteristics does this phylum share? Complete digestive system, lack of segmentation, and true body cavity No central brain, incomplete body cavity, and radial symmetry Exoskeleton, jointed feet, and simple nervous system Complete body cavity, segmentation, and bilateral symmetry

Complete body cavity, segmentation, and bilateral symmetry

Explanation:

In conjuction with possessing a backbone, chordates also have a complete body cavity, segmentation, and bilateral symmetry. They possess a complete true body cavity called the coelom. They also exhibit heteromeric segmentation wherein the links between segmented regions are inconspicuous. And they majorly possess bilateral symmetry; being divisible into symmetric halves.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'