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Rama09 [41]
3 years ago
6

Three species of North American warblers are found to feed in different parts of the same spruce tree. This particular behavior

of warblers displays which ecological characteristic?
Biology
1 answer:
Evgesh-ka [11]3 years ago
7 0
In this particular behavior, the three species of North American warblers cannot share the same niche in the same habitat. It is called "Gause's Competitive Exclusion Principle." It means the competitors with equal bearing cannot exist. There will always be the dominant one in a competition.
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DCCD (dicyclohexylcarbodiimide) inhibits oxidative phosphorylation when the substrate is mitochondrial NADH. DCCD is a drug that
VARVARA [1.3K]

Answer:

A) Decreases cellular energy production

B) DCCD also affects K+ transport

Explanation:

A) Consequences are of DCCD on cellular energy production: <em>Decreases cellular energy production</em>

ATP-synthase pump is composed of two subunits: F1 catalytic subunit that synthesizes ATP, and F0 proton pumping subunits, that transport H+ through the membrane. F1 subunit might act independently of F0 to produce ATP, but this molecule can not be released without H+ gradient, which generates a movement necessary for ATP release from the catalytic center.

When any of the parts composing F0 react with DCCD, the subunit can not transport H+ through the membrane. DCCD inhibits the enzyme activity by blocking the protons´ flow.

As DCCD blocks the protons´ flow, and the protons´ flow is necessary to release the ATP molecule from the F1 subunit, no other ADP + Pi can enter to F1 subunit, and the production of ATP stops.

B) Other cellular effects of DCCD

There seem to be other effects of DCCD on cell activity, some of which are still under study. To name a few:

  • Diimide from DCCD seems to stimulate cytochrome b reduction and inhibits its reoxidation by ferricyanide.
  • When exposing the cell to high concentrations of DCCD for a long time, might occur an alteration in the electron transporting chain
  • Inhibition of ubiquinol-cytochrome c reductase activity when exposing the cell to high concentrations of DCCD.
  • Inhibition of K+ transport, associated with the inhibition of H+ transport.

Concerning the effect of DCCD on the K+ transport, DCCD stops the extrusion of H+ and the consequent intrusion of K+.

DCCD strongly inhibits the simultaneous flow of H+ and K+. First, it inhibits H+ flow, acidification of the environment stops, but at this point, K+ keeps moving through the membrane. Once the H+ flow has ceased, the K+ flow slowly decreases until it finally stops moving. There is a lag time in the DCCD effect on K+ flow to the instantaneous effect on H+ flow.

5 0
3 years ago
Polisakarida merupakan gula polimer yang terbentuk melalui proses kondensasi. Beratus-ratus
Sholpan [36]

Answer:

aa

Explanation:

6 0
3 years ago
Which statement is correct concerning the process of ecological succession? Shrubs will replace pines during succession. Primary
Mariana [72]

Answer:

Option (2).

Explanation:

Ecological succession is the change in the ecological community of the species with respect to time. Two  types of the succession are  secondary succession and primary succession.

The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.

Thus, the correct answer is option (2).

3 0
3 years ago
BRAINLIESTTT ASAP!!!!<br><br> -What is the position of Earth during its four seasons?
Keith_Richards [23]

Summer , for the northern hemisphere, summer is the warmest time of year. It's not because the planet is that much closer to the Sun, it's because the top part of the Earth is facing the Sun for a amount of time.

The Sun is directly over the Equator during the autumnal equinox, and heating the northern and southern hemispheres equally. As the northern hemisphere is moving towards shorter days and the cold winter, the southern hemisphere is watching the snows melt and the flowers bloom during their spring.

Summer is the season where the Earth is tilted way from the Sun and the South Pole is getting all of the light

Spring is a bit of a mirror image to our position in autumn. The Sun is directly over the Equator during the equinox and the northern and southern hemispheres

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3 years ago
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On which side of a selectively permeable membrane does osmosis exert a pressure
bixtya [17]
It is the Hypertonic Side. Osmosis applies a weight known as osmotic weight on the hypertonic side of a specifically porous film. 
This implies osmotic weight should deliver a net development of water into a run of the mill cell that is encompassed by new water. On the off chance that that happens, the volume of a cell will increment until the point when the cell ends up plainly swollen. In the end, the cell may blast like an overinflated expand.
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3 years ago
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