The correct answer is - isobar.
On this map, the lines represent isobars. The isobars are lines that closed and circular, connecting the dots of places that have the same air pressure. On this map, as we can see, is represented the air pressure in the United States.
From what can be seen on this map, the air pressure in the western part of the country is high air pressure, throughout all of that half of the country. The eastern half is more mixed, with the isobar marked with 1016 being the areas with high pressure, while all the others are low air pressure zones.
When males place their sperm in the females' spermathecae, fruit flies can start laying eggs (a process known as induction). Induced egg laying has the selection benefit of ensuring that a male fly's sperm is utilized for fertilization, which is beneficial for male flies.
- The spermatheca is an ectodermal organ that only develops in Queens and is not present in workers.
- Spermathecae gets sperm from the male during mating.
- Because it assures that a male fly's sperm is used for fertilization, induced egg laying for male flies has this benefit.
Thus from the above points, we can conclude that egg laying in the fruit flies had an adantage.
Learn more about induction:
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Cortex is the region between capsule and medulla.
Bones attach to each other by ligaments.
Bones attach to muscle by tendons.
When muscles contract, bones are pulled to produce movement
(correct on test)