The genome is often compared to a set of blueprints
Jellyfish should reproduce sexually if genetic variation is needed in order to survive in the change in environment.
Jellyfish should reproduce sexually if genetic variation is needed by the organism leading to more adaptations to the natural environment. There is no variation between offspring in asexual reproduction.
It involves single parent not two parents so their chances of survival against change of environment while on the other hand, offspring produced from sexual reproduction having variations that leads to higher chance of survival.
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Answer:
b. Hiccupping is a vestigial reflex that suggests a common ancestry between humans and amphibians.
Explanation:
Hiccupping refers to an involuntary contraction of the diaphragm that usually occurs several times per minute. Some research has suggested that hiccuping is an evolutionary remnant of amphibian respiration. This is because the mechanism is remarkably similar to the way tadpoles gulp air and water across their gills. This would mean that hiccups exist due to an antecedent to modern lung respiration.