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2 years ago

5

Simon and his friends are working on an experiment to determine the most common blood type group in California. Which of these m

ethods would be the best form of data collection?

1 answer:

daser333 [38]2 years ago

8 0

A DNA sample would be best

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Identify the factors that seem to affect the buffalo and wildebeest.

Anton [14]

Answer:

lack of resources, and mating

Explanation:

they may go ictenct

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3 years ago

Which are precautions to take when working with heat and fire? Check all that apply. Do not touch. Keep flammables away. Avoid t

e-lub [12.9K]

Answer: All the given precaution are important to take care when working with heat and fire.

Explanation:

Double check on these precaution should kept be while working or experimenting with fire and heat:

Hair should be tied back : bun or pony will be fine. if hair are untied then chances of catching fire by hair will be high.
Do not touch hot equipment ,if required use gloves or tongs. Touching hot equipment with bare hands may lead to burns or minor (or major) accident
Keep your face and eyes away from the flame while experimenting.Cover your face with mask and goggles.
Do not mix chemical until or unless told to do so. This is because some times mixing of chemicals leads to evolution of large amount of heat which can difficult to handle.
Be careful regarding cloths while working with heat and fire.
Flammables must be kept away and should be used with caution. Safer distance must be maintained

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3 years ago

Read 2 more answers

Explain why lizards with brown tails are more likely to be eaten by snakes than the lizards with blue tails.

Alina [70]

Answer:

lizard tails with vivid blue reflectance evolved in communities with either weasel or snake predators, which can both detect blue wavelengths. However, lizard tail UV reflectance was much higher in populations with only snake predators, perhaps because snakes can detect UV, yet weasels cannot. Finally, a cryptic brown tail evolved on islands where birds are the primary lizard predator. Because birds have keen visual acuity, a brown, camouflaged tail may be more advantageous.

Explanation:

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1 year ago

What do birds short necks help them to do? pls help :/

Fiesta28 [93]

Explanation:

Most diving birds have (relatively) long necks and shorts legs, although their necks aren't as long as say herons, storks or egrets. Take the common loon for instance. Their necks can be up to half as long as their bodies but their legs are so short and set so far back that they are very awkward on land.

4 0

2 years ago

Read 2 more answers

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