Male produces signals of bright red, yellow epaulets and long tails.
Males produce bright red and yellow epaulets as well as chevrons on their wings. These bright epaulets attracts the female of this species and helps in the sexual activity of widowbird species.
The males of several widowbird species also grow long tail feathers about half a meter in length. The long tail is favored by sexual selection through female choice of mates. Female prefer long tails red-collared widowbird so we can conclude that male produces signals of bright red, yellow epaulets and long tails.
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Single nucleotide polymorphism or point substitution
Engineering bacteria to use the gene to produce the pine tree protein.
"Bypass valves are important in any system through which water or oil is pumped to maintain an even pressure and keep the system operating" I researched your question and this came up hope it helps
Answer:
11. Warehouse
The vacuole stores water, food, and other materials needed by the cell like a
warehouse stores materials needed by the city.
12. Post office
It packages proteins into membrane-bound vesicles inside the cell before
the vesicles are sent to their destination