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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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Describe logistic population growth from a small population to a large one. be sure you talk about the population growth rate (t
gavmur [86]

When a population is small in a habitat, its population growth is exponential. This means it doubles its population with every generation. This is because there is plenty of resources and little competition between individuals of the population. However, as the population grows bigger, the population reaches carrying capacity (the maximum number that the ecosystem can hold). The growth slows and stagnates as stiff competition results to an equal death rate as birth rate.






5 0
3 years ago
Consider the following three populations of birds. Assume HW equilibrium. With these birds red coloring is recessive, while brow
bixtya [17]

Answer:

Red allele frequency will be highest in population II

Population III can undergo bottleneck effect

The frequency of the brown allele will  least likely be altered in the population I

Explanation:

Population I -

Total population - 670

Brown birds - 603

Red birds - 67

Population II

Total population - 100

Brown birds - 90

Red birds - 10

Population III

Total population - 30

Brown birds - 27

Red birds - 3

Frequency of red birds in population I

\frac{67}{670} = 0.1

Frequency of red birds in population II

\frac{10}{90} = 0.11

Frequency of red birds in population III

\frac{3}{30} = 0.1

Red allele frequency will be highest in population II and it will be equal to \sqrt{0.11} = 0.33 as compared to 0.31 in case of population I and III

Population III can undergo bottleneck effect because of smaller population size

The frequency of the brown allele will  least likely be altered in the population that has highest  brown individual , i.e population I

4 0
3 years ago
11. A woman requires more calcium in her diet when she is pregnant.
Rainbow [258]
D because it’s healthy for the baby to eat protein
5 0
3 years ago
Read 2 more answers
Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogou
Liono4ka [1.6K]

Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogous to a human

B. putting more red blood cells into circulation when atmospheric oxygen levels decline.

<h3>What are stomata?</h3>

The stomata are apertures in the epidermis, each bounded by two guard cells. There are small openings on the lower surface of the leaves. These pores are called stomata. Loss of water from the stomata creates an upward pull, that is suction pull, which helps in the absorption of water from the roots. That is helpful for the transpiration process. They help in exchange for gases. Any of the tiny pores or openings in the epidermis of leaves and young stems are referred to as a stomate, sometimes known as a stoma, the plural of which is stoma or stomas. On the underside of the leaves, stomata tend to be more numerous. They enable the exchange of gases between the atmosphere outside and the leaf's branching network of interconnected air canals.

To learn more about  stomata, Visit;

brainly.com/question/28212270

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8 0
2 years ago
Determine whether the statement is true or false. Suppose P(t) represents the population of bacteria at time t and suppose P'(t)
Lorico [155]

Answer:

TRUE

Explanation:

If the population follows a logistic growth curve, the graph of P vs t will look like the diagram below.

The rate of growth (P') increases slowly at first, then increases rapidly from 2 to 4, and then slows down, but always P > 0.

The graph has an inflection point at (3, 1000). That's the point at which the rate of growth starts slowing down.

When t < 3, P'' > 0.  

When t = 3, P'' = 0.

When t > 3, P'' < 0, because the rate of population growth is slowing down.

Thus, if the population is in the final phase of logistic growth, the population is increasing at a decreasing rate (TRUE)..

4 0
3 years ago
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