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2 years ago

Increased poaching nearly led to the extinction of the American bison. What kind of effect does this example represent?

2 answers:

5 0

The correct answer to this question is this one: a.) bottleneck effect. Increased poaching nearly led to the extinction of the American bison. The kind of effect that does this example represent is called the bottleneck effect. Hope this helps answer your question.

AURORKA [14]2 years ago

4 0

the answer to this question is letterA

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What is the correct order of levels of organization, from smallest to largest?

love history [14]

Cell-tissue-organ-organ system-organism

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2 years ago

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Which condition is characterized by excessive destruction of circulating red blood cells?

yanalaym [24]

Answer:

Answer is hemolytic anemia.

Explanation:

Hemolysis is the destruction of red-blood cells, while anemia when the amount of the red blood cells in the body is lower than the expected or normal.

Therefore, hemolytic anemia can be defined as a disorder or situation where the rate at which the red blood cells are destroyed is faster compared to the rate at which they are made or produced.

This can be caused by bone marrow failure or infections, and inherited blood disorder like sickle cell disease.

The hemolytic anemia is a serious disorder that can damage the heart and other organ of the body, this is because of oxygen starvation, since the red blood cells responsible for carrying oxygen around the body have been affected.

Eating some food items like beans, green vegetables, red meat and legumes can increase red blood cell count.

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3 years ago

(WILL GIVE BRAINLIST) choose one of the following natural resources to answer the question: oil, natural gas, minerals, freshwat

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The distribution of natural resources depends upon number of physical factors like terrain, climate and altitude. The distribution of resources is unequal because these factors differ so much over the earth.

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2 years ago

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The set of proteins in the cristae of the mitochondrion, which collectively extract the energy from reduced coenzymes to form at

lesantik [10]

Cell respiration involves different steps, among which there is the oxidative phosphorilation that produces and stores ATP. The answer is the <u><em>electron transporter chain</em></u>.

<h3>ELECTRON TRANSPORTER CHAIN -oxidative phosphorylation-</h3>

The electron transporter chain + chemiosmosis constitute the process of oxidative phosphorylation.

Chemiosmosis

Chemiosmosis refers to ATP production through a proton gradient.

Electron transporter chain

The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane.

It constitutes a series of enzymatic reactions to release and save energy for the correct functioning of the organism.

Along the chain, there are four proteinic complexes in the membrane, I, II, III, and IV, that contain the electrons transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.

Different redox reactions occur to pass electrons along the chain.

Released energy creates a proton concentration gradient used to synthesize ATP.

<h3>Steps in the electectron transporter chain</h3>

1) NADH provides electrons to the first complex, Complex I. From there, electrons go to the coenzyme Q that carries them to complex II. Meanwhile, complex I pomp four protons to the intermembrane space.

2) Complex II receives electrons from CoQ and also receives electrons from FADH2. Electrons are sent from complex II to ubiquinone Q, which carries these electrons to complex III.

3) Complex III receives electrons from ubiquinone Q and pomps protons to the intermembrane space. Electrons are transferred to Cytochrome c.

Electrons travel from cytochrome c to complex IV.

4) Complex IV is the last complex that pomps protons to the intermembrane space.

5) Electrons are sent to O₂ molecules, which also receive protons in the matrix to create water molecules. Four electrons are needed to produce two water molecules from one O₂ molecule.

The proton gradient is used to produce ATP molecules.

In conclusion, <em>the set of proteins in the cristae of the mitochondrion, which collectively extract the energy from reduced coenzymes to form atp, are called the</em> <u><em>electron transporter chain</em></u>.

You will learn more about the electron transporter chain at

brainly.com/question/24372542

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2 years ago

The hard outer covering of an animal is a(n) ___________.

RUDIKE [14]

Answer:

exoskeleton

Explanation:

An exoskeleton is the hard outer covering that supports and protects some animals without backbones.

Hope this helped!!!

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2 years ago

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