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luda_lava [24]
3 years ago
14

In a population, surrounded with dark gray rocks, there lived 2 types of beetles, a gray beetle and a white beetle. In the start

ing 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?​
Biology
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

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.

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Information passes from the axon of one cell to the dendrite of another cell across a tiny gap called a/n ____________.
jolli1 [7]

Answer: D. Synaptic cleft

Explanation:  

The transmission of nerve impulses between two neurons takes place  between the axon of one cell to the dendrite of another cell, and this process is called synapses.  The synaptic structure is formed by the presynaptic membrane, the synaptic cleft and the postsynaptic membrane.

...............................................

I hope this can help. Regards. María

6 0
4 years ago
based on the description and data table above which of the following combination best classifies the song Sparrow​
sergiy2304 [10]

Answer:

The song Sparrow​ can be best classified as R-strategist and generalist

Explanation:

A generalist is an organism that can adapt to different habitats and can consume different resources.

As written in the description, the song Sparrow show are able to survive in a number of different habitats and they can feed on many preys hence, they are generalists.

R- strategist organisms can be described as the organisms which produce wide number of offsprings and have a short life span. They might produce enormous number of eggs but very little of them will be able to survive.

As the song Sparrow can produce several broods in a year hence, it is an R-strategist.

6 0
4 years ago
What does xylem carry up the plant?
antoniya [11.8K]

<em><u>Xylem</u></em> is a part of <em><u>Vascular bundle </u></em>which carry up <em><u>water</u></em> and <em><u>minerals</u></em> from roots of plant to its leaves.

So, the required answer is :

=》A. <em><u>Water and minerals</u></em>

4 0
3 years ago
The structure labeled ________ can be influenced by hormones to change the concentration of the urine.
puteri [66]

Answer: The diagram attached is known as the nephron,it is labelled from A to E, the structure labelled E which is known as the COLLECTING DUCT can be influenced by hormones to change the concentration of urine.

Explanation: Antidiuretic hormone ADH is one of the hormones that is produced by the anterior lobe of the pituitary gland of the endocrine system,this antidiuretic hormone performs certain functions of which one is that it helps to increase the rate and amount of water that is reabasorbed in the distal convulated tubule of the nephron during the second stage of urine formation,when these water are reabsorbed,the urine being produced becomes more concentrated and there is a further reduction in the volume/quantity of urine produced.

When this volume of urine is decreased/reduced, plasma osmolarity increases in reaction to the decreased volume of urine.

Urine are also reabsorbed in the collecting duct.

5 0
3 years ago
What structures associated with prokaryotic and eukaryotic cells carry out protein synthesis
Svetllana [295]

I would assume to believe that this would be the mRNA

3 0
4 years ago
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