Chords that contain tones a half-step or whole-step apart are called

Chords that contain tones a half-step or whole-step apart are called Tone Clusters. It is a chord made up of tones only a half step or whole step apart. It can be produced on a piano by striking a group of adjacent keys with the fist or forearm.

Tone clusters

Explanation:

Chords are a harmonic set of three or more notes that is heard as if sounding simultaneously. Chords with tones a half- (The musical interval equal (exactly or approximately) to half a tone or one-twelfth of an octave) or whole-step (The musical interval equal (exactly or approximately) to two semitones or two-twelfths of an octave) apart are known as tone clusters. Ealier though to be central to piano tone clusters can and maybe performed may be performed on instruments in which three or more notes can be played at the same time. In most western music though, tone clusters can be viewed as not exhibiting harmony and might be harsh to a listening ear.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation:

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