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denis-greek [22]
3 years ago
13

What two important factors determine the nature of an ecosystem?

Biology
1 answer:
Lelechka [254]3 years ago
4 0
Temperature, and Humidity are the two important factors of an ecosystem 
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Which statements accurately describe conduction and convection? CHECK ALL THAT APPLY 1. Only conduction needs matter to transfer
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Answer:

3. and 4.

Explanation:

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3 years ago
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In a population, surrounded with dark gray rocks, there lived 2 types of beetles, a gray beetle and a white beetle. In the start
Tems11 [23]

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.

8 0
2 years ago
3. Is it possible to harvest solar energy trapped by leaves? Suggest some methods with reasons.​
Sever21 [200]

Answer:

Explanation:

Most solar energy occurs at wavelengths unsuitable for photosynthesis. Between 98 and 99 percent of solar energy reaching Earth is reflected from leaves and other surfaces and absorbed by other molecules, which convert it to heat. Thus, only 1 to 2 percent is available to be captured by plants.

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2 years ago
An ecologist studying plants in the desert performed the following experiment. She staked out two identical plots, which include
QveST [7]

An ecologist studying plants in the desert performed the following experiment. She staked out two identical plots, which included a few sagebrush plants and numerous small, annual wildflowers. She found the same five wildflower species in roughly equal numbers on both plots. She then enclosed one of the plots with a fence to keep out kangaroo rats, the most common grain-eaters of the area. After two years, to her surprise, four of the wildflower species were no longer present in the fenced plot, but one species had increased dramatically. The control plot had not changed. Using the principles of ecology, propose a hypothesis to explain her results.

Explanation:

  • This example highlights the impact of plant predation on species selection. In the fenced off plot animal predation is not a factor on plant selection.
  • In this case plants will compete for resources only with each other and in this case one plant had a selective advantage over the other 3 species of plants. In the plot exposed to animal predation the ratio of the four species is equal.
  • This is likely do to an increased preference of animals for the plant species that dominates in the fenced off plot and/or anti-animal predation tactics by the other three species.

a.Hypothesis: kangaroo rats are keystone species

-Reintroduce kangaroo rats (and the other locally extinct species)

-Should observe equilibrium re-established

b.Hypothesis: kangaroo rats exert top-down control on community

-Reintroduce kangaroo rats (and other locally extinct species)

-Increase kangaroo rat population in other plot

-Decrease (but don't eliminate) kangaroo rat population in other plot

c.Hypothesis: Locally extinct species inferiorly competed with the extant species of plant

-Remove surviving species from other plot (and remove kangaroo rat population)

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3 years ago
What usually happens to ice before it changes into gas?
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<span>Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage.</span>
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