What are the disadvantages and advantages of parthenogenesis?

The process of reproducing offspring from female eggs without any male involvement.

Advantages

1- Rapid production of numerous offspring and there is need of male gametes.

2- Require less amount of time and energy

3- Offspring are the exact copies of the parents and are called clones as they are similar morphologically and genetically.  

Disadvantages

1- There is no genetic variability.

2- No new genetic combinations which can be a threat for their survival during  population selection.  

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .