In a population, surrounded with dark gray rocks, there lived 2 types of beetles, a gray beetle and a white beetle. In the starting population, there were 5 gray beetles and 5 white beetles, until it was populated with birds surrounding areas above the dark gray rocks. Due to this incident, all white beetles were eaten by the birds and all gray beetles survived. Next generation NATURAL SELECTION Dark rock environment are grootte grandeetten by birds more often than dark ones X=eatern by Only survivors reproduce... Fred of a = 0.7 Free of a = 0.4 Freg of A = 06 Using information from the passage, what mechanism of evolution is described and what genotype frequency of AA, Aa, and aa for the next generation is accurate?

Explanation:

habitat

Habitat Grasslands  Common Nighthawks nest in both rural and urban habitats including coastal sand dunes and beaches, logged forest, recently burned forest, woodland clearings, prairies, plains, sagebrush, grasslands, open forests, and rock outcrops. They also nest on flat gravel rooftops, though less often as gravel roofs are being replaced by smooth, rubberized roofs that provide an unsuitable surface. During migration, Common Nighthawks stop in farmlands, river valleys, marshes, coastal dunes, and open woodlands. Their South American wintering habitat is not well known.

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Food

Food Insects Common Nighthawks eat flying insects almost exclusively. The Common Nighthawk hunts on the wing at dawn and dusk, opening its tiny beak to reveal a cavernous mouth well suited for snapping up flying insects. It often takes advantage of clouds of insects attracted to streetlamps, stadium lights, and other bright lights. Nighthawks eat queen ants, wasps, beetles, caddisflies, moths, bugs, mayflies, flies, crickets, grasshoppers, and other insects. They may also eat a small amount of vegetation. Though they forage in low light, they seem to locate prey by sight, possibly with the help of a structure in their eyes that reflects light back to the retina to improve their night vision. They occasionally forage during the day in stormy weather, but seem to never forage at night. Common Nighthawks may forage near the ground or water, or more than 500 feet into the sky.

NESTING FACTS

Clutch Size:2 eggs

Number of Broods:1-2 broods

Egg Length:1.2 in (3 cm)

Egg Width:0.8 in (2.1 cm)

Incubation Period:16-20 days

Nestling Period:17-18 days

Egg Description:Creamy white to pale olive gray, heavily speckled with gray, brown, and black.

Condition at Hatching:Active and sparsely covered with down (dark gray above and creamy below), with eyes half or fully open.

explanation:

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