Answer:
Part A: The process of sexual reproduction is important because by this process organisms with varied genetic characteristics can be formed. Crossing over and independent assortment allow individuals to be born which are not alike to another and their parents. As a result, genetic diversity is produced.
Part B:
The process 1 is meiosis. The process 3 is development by mitosis.
The reproductive organs form sperm and egg by the process of meiosis. During this process, the number of chromosomes is reduced so that the number of chromosomes of an individual can be maintained.
The zygote converts into an embryo in a process called germinal development. The zygote replicates by mitosis to form into an embryo.
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Extremes in temperature, pressure, and chemicals associated with injury are detected by specialized peripheral sensory neurons known as nociceptors, who then translate these stimuli into long-range electrical signals that are transmitted to higher brain centers. This alerts us to potentially harmful stimuli at the skin. A wide range of pain characteristics are produced by the activation of functionally different cutaneous nociceptor populations and the processing of the information they relay. Current research in this area is giving scientists a deeper understanding of the molecular and systems levels of nociceptor cell biology as well as knowledge that will enable the focused design of innovative pain treatments.
<h3>What is Chemical composition sense ?</h3>
Chemical senses (sometimes called chemical sensors) are sensory organs and neurological systems that are used to detect molecules in the environment or biological signals and to process those molecules neurally
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Answer:
Nucleic acids are polynucleotides—that is, long chainlike molecules composed of a series of nearly identical building blocks called nucleotides. Each nucleotide consists of a nitrogen-containing aromatic base attached to a pentose (five-carbon) sugar, which is in turn attached to a phosphate group.
Explanation: