The sensory input initiated from the spinal cord before reaching to the brain . The information firstly goes to first order neuron where it receives impulses from skin and then transferred to the spinal cord.
Some sensory pathways consists of chain of neuron that transfer from receptor organ then to cerebral cortex that is responsible the perception of sensations. Sensory input is converted into electrical signals are known as nerve impulse.
This nerve impulse are transmitted into into brain. The correct order is Receptors - Sensory neuron- Spinal cord - Motor neuron- Muscle.
Impulse are the strong desire to act or that causes something to happen or happen more quickly.
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Genes are composed of stretches of DNA, a complex molecule shaped like a twisted ladder or staircase.
The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. A is always paired with T and G is always paired with C.
Answer:
They have only half the number of chromosomes
Explanation:
Sex cells are haploid containing half the number of chromosomes as our body cells. When sex cells combine in fertilization it creates a diploid cell containing the correct number of chromosomes for the organism.