When is the most accurate description of the ecosystem

Explain how soaring and gliding birds use their air currents in their flight

ira [324]

Soaring and gliding birds like eagle, vulture, albatross, sea gulls etc are efficiently adapted to utilize the air currents in their flight.

Explanation:

The soaring flight and gliding movements are special adaptation developed by birds to meet the challenge of increasing turbulent air current.

Birds have the extraordinary skill of flying smoothly and effortlessly even at very high altitudes

Birds soar by using thermal and dynamic soaring techniques.

Gliding movements help the birds to deflect the wind downward which helps to lift their bodies in the air. They do not flap their wings during gliding but just dive straight into the air which helps to increase their speed.

The adaptation of the bird’s structure with very light but strong bones on their wings helps to soar and glide in the air.

8 0

3 years ago

Most fertilizers contain ammonia. Ammonia (NH3) forms when hydrogen reacts with nitrogen. Which balanced equation represents amm

Lana71 [14]

<span>The balanced equation for ammonia (NH3) is 3H2 + N2 ď 2NH3. This equation starts from H2 + N2 ď NH3. We have 1 N and 3 H on the right side (the product side) of the equation, so we multiply each by 2 to get 2 N and 6 H. We do this so that we donâ€™t have an odd number of H atoms. We then balance the left side (the reactant side) of the equation with the right side, N is already balanced, but we have to multiply H by 3 to get 6 H atoms (to match the right side of the equation.</span>

6 0

2 years ago

The simplest sugars are generally called _____.

Eva8 [605]

<span>the simplest sugars are generally called monosaccharides.

hope this helps</span>

6 0

3 years ago

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Indicate whether each of the following statements is true of depurination (DP), deamination (DA), or pyrimidine dimer formation

solniwko [45]

Answer:

- This process is caused by spontaneous hydrolysis of a glycosidic bond: depurination and deamination

- This process is induced by ultraviolet light: pyrimidine dimer formation

- This can happen to guanine but not to cytosine: depurination

- This can happen to thymine but not to adenine: pyrimidine dimer formation

- This can happen to thymine but not to cytosine: none

- Repair involves a DNA glycosylase: deamination

- Repair involves an endonuclease: depurination, deamination and pyrimidine dimer formation

- Repair involves DNA ligase: depurination, deamination and pyrimidine dimer formation

- Repair depends on the existence of separate copies of the genetic information in the two strands of the double helix: depurination, deamination and pyrimidine dimer formation

- Repair depends on cleavage of both strands of the double helix: none

Explanation:

Depurination is the loss of purine bases (either adenine or guanine), while deamination refers to the removal of an amino group. During depurination, a β-N-glycosidic bond is cleaved by hydrolysis and a nucleic base is released (either adenine or guanine). All DNA bases may undergo deamination, except thymine (since thymine does not have an amino group). The ultraviolet (UV) radiation can cause thymine or cytosine to form dimers (e.g., pyrimidine dimers), being thymine dimers the most common lesion when DNA is exposed to UV light. Pyrimidine dimers may be repaired by different excision mechanisms, e.g., nucleotide excision repair, where the recognition of the DNA damage leads to the removal of the DNA fragment containing the lesion. DNA glycosylases are enzymes involved in the mechanism of base excision, these enzymes recognize and remove damaged bases by hydrolysis of the glycosidic bond, producing an abasic (apurinic and apyrimidinic) site. A DNA ligase enzyme covalently joins two DNA molecules by forming a phosphodiester bond, which is required during these processes.

8 0

2 years ago

Many species of organisms are found only on islands. Lemurs are found only on Madagascar and koalas only on Australia. Which fac

satela [25.4K]

The answer is C. Genetic Isolation.

Genetic isolation occurs when there is no genetic exchange between organisms of the population or species. One of the reasons that cause genetic isolation is geographical separation. The reason why some species of koalas are only found in Australia and lemurs in Madagascar is that they cannot mate with other species outside of their geographical boundary.

3 0

3 years ago

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