Answer:
The human skeletal system consists of all the bones, cartilage, tendons, and ligaments inside of the body. Together, the skeleton makes up about 20 percent of a person's body weight. An adult's skeleton contains 206 bones!
Explanation:
Ans.
Photic response or sneezing due to exposure of bright sunlight is a genetically inherited trait. A given, both man and woman are showing photic response and are heterozygous (Hh) for the trait.
It indicates that 'the inheritance pattern for photic response is autosomal dominance,' means the mutated allele (H) for the trait is dominant over normal or recessive gene (h), and presence of only copy of it can shows its effect.
Thus, the correct answer is 'dominant-recessive.'
The industrial revolution caused pepper moths to adapt to a darker color.
Answer:
six-finger allele
Explanation:
A dominant allele is the copy of a gene located at a locus on a chromosome, whose phenotype is often expressed in the presence of the other copy of a gene in an individual. It is the allele of a gene of that override the effect of the other copy of the gene. It is dominant over the other. The other copy of the gene that it dominates is the recessive allele.
The six-finger allele that expresses itself in the same individual in the presence of the five-finger allele is the dominant allele. The five-finger allele is the recessive allele.
Answer:
The correct order would be
Sensory receptors in the arteries detect low oxygen levels.
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Sensory neurons generate an impulse.
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The central nervous system relays an impulse to certain brain regions.
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The brain sends signals through motor neurons.
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Isabel's breathing rate increases.
The working of the nervous system can be summarized as:
The receptors receives the stimulus which then send signals to the brain with the help of sensory neurons.
For example, sensory receptors in the arteries detect the low oxygen levels after which sensory neurons send the signals to the brain.
The stimulus or information is processed in a specified region of the brain which then sends the signals to the effector organ via motor neurons.
The action or reaction is generated at the effector site such as an increase in the breathing rate of Isabel in this case.
