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Answer:

he ATP is used to return the mysoin head to its starting position. The ATP is hydrolyzed to Pi + ADP. The head with the ADP and Pi attaches itself to the actin filament. When ADP and Pi release the mysoin head pulls back.

Explanation:

Answer:

The ATP is used to return the mysoin head to its starting position. The ATP is hydrolyzed to Pi + ADP. The head with the ADP and Pi attaches itself to the actin filament. When ADP and Pi release the mysoin head pulls backback

Explanation:

Answer:

Stage 2 represents a muscle that is fully contracted.

Explanation:

Verified by correct test results.

Answer:

a muscle that is fully contracted

Explanation:

We can confirm that a person with very toned muscles likely has tightly packed myofibrils.

These fibers are the protein filaments that cause contractions in the structure of the muscle. Weight training tones muscles by increasing the number of myofibrils in a sarcomere, thus increasing its capacity to produce force.

Therefore, we can confirm that a person with very toned muscles likely has tightly packed myofibrils.

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Answer: C

Explanation:

Differences in function between the wing of a bird and the forelimb of a seal can be explained by natural selection and adaptation to different environments.

Evolution refers to descendence with modification in an organism, which occurs via natural selection.

Natural selection is the differential reproduction and survival of the more adapted organisms in an environment.

An adaptation is a certain feature that allow organisms to survive in particular environmental conditions.

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Answer:

Grass is on the bottom of the energy pyramid because it needs the least amount of energy. A rabbit is in the primary consumers level, and a wolf is a secondary level consumer.

Explanation:

Birds, like airplanes, must be lightweight as well as powerful. They can fly only because evolution slimmed down their entire anatomy from their reptilian ancestors. Over time, the bones of birds have become lighter and, in the case of many "finger bones," some have disappeared altogether.

The quantity of work done by the box is equal to 40 units of work.

Given the following data:

Distance = 4 meters.

Force = 10 Newton.

In Science, work done is generally calculated by multiplying force and the vertical distance (displacement) that is covered by an object.

Mathematically, work done is given by the formula:

Work done = force × distance

Substituting the given parameters into the formula, we have;

Work done = 10 × 4

Work done = 40 units of work.

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Answer:

. Most of our energy waste in North America results from

A. A failure to turn off lights

B. Technological inefficiency

C. The fact that more efficient energy conversion is not possible

D. Overwhelming public ignorance of conservation issues

E. The fact that energy conservation techniques are quite expensive

B. Technological inefficiency

Answer:

Answer islimiting factor.

Explanation:

A limiting factor is anything that constrains a population's size and slows or stops it from growing.

Answer:

c

Explanation:

viruses aren't like bacteria where they could survive on their own.

Exons are the DNA fragments that get to be transcripted and translated into proteins. Option b) Exons end up being expressed in the protein.

Even though more than 70% of the DNA is related to genes, just a part of the genes is translated to proteins. Most genes have DNA segments that are not transcripted or translated intercalated with segments that are translated.

Most of the eukaryotic, multicellular genes contain introns in their sequences, intercalated with exons.

Introns are transcripted to mRNA molecules and get excised before translation by a specific mechanism. This occurs before the mRNA leaves the nucleus. The introns are excised and the exons must splice to form a unique molecule. This process is known as splicing.

Exonic sequences are the fragments that are transcripted and translated into proteins.

The correct option is b). Exons end up being expressed in the protein

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Explanation:

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Answer:

It would probably be "conduct survey of a species population in an ecosystem"

Answer:

Rotation is the spinning of an object in one place. Revolution is the circling of an object in a given orbit (path).

Explanation:

When the earth rotates, it spins on its own axis which is tilted at 23.5 degrees. Thus, we can conclude that the earth rotates on its axis every 24 hours relative to the Sun.

When the Earth completes one revolution around the sun in a fixed orbit in 365.25 days. This means the earth takes approximately 365 days to completely encircle around the sun and return back to its original position.

(The extra .25 day is added every year to make up one full day. Hence, we see a leap year every 4 years).

Based on spatial summation, the synapses closest to each other will brings the initial segment closest to threshold.

Excitatory Post-Synaptic Potentials, EPSP, are postsynaptic potential changes that are induced by neurotransmitters which depolarizes the cell, and hence increases the likelihood of initiating a postsynaptic action potential.

Based on spatial arrangement, the summation of two simultaneously fired synapses that is greater than or close to threshold potential will produce an action potential.

Therefore, the synapses closest to each other will brings the initial segment closest to threshold.

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Explanation:

No because a speech has to be a meaningful speech

Answer:

DNA is found in the nucleus of each cell.

Explanation:

Water’s density increases as it freezes or at lower temperature which is a unique property of water that enables aquatic animals to survive.

Cool water has more density because cooling a substance leads to molecules to slow down and get closer to one another, occupying a smaller volume that results in an increase in density while on the other hand, the warm water is less denser and will float on room-temperature water.

So we can conclude that cold water is more dense and will sink in room-temperature water.

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Answer:

The study of cladistics, however, results in a phylogeny tree in which fungi are more closely related to animals than to plants. In other words, animals have a more recent common ancestor with fungi than with plants, and the mushrooms in your salad are more closely related to you than to the lettuce. Differences Between Fungi and Animals

Explanation:

Answer:

I think the answer Is divide the cell in half and see the explanation

Explanation:

Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis

Answer:

burning coal

Explanation:

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Vaccines work by stimulating the immune system to recognize and defend against specific pathogens, such as viruses or bacteria, that cause diseases.

There are different types of vaccines, including those that contain dead or inactivated pathogens.

When a vaccine contains dead or inactivated pathogens, it means that the pathogens have been rendered non-functional or unable to cause disease. However, they still retain their antigenic properties, which means they can trigger an immune response.

When the dead or inactivated pathogens are introduced into the body through vaccination, the immune system recognizes them as foreign invaders.

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The left coronary artery typically branches into the anterior interventricular artery and the circumflex artery.

The circumflex artery is an artery that branches from the left coronary artery, which is one of the most important arteries in the body.

The circumflex artery is well known to envelop and surround all the heart muscle (cardiac muscle).

The circumflex artery is a fundamental blood vessel in the heart and its damage may have serious health problems.

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The black bear has a tendency to proliferate, whereas the polar bear has a tendency to undergo faster extinction because they live in the arctic.

The black bear (Ursus americanus), also known as the baribal, is a North American bear, found from Alaska to northern Mexico. It reaches 2.20 m in length, 1.10 m in height at the withers and 360 kg in weight.

The polar bear (Ursus maritimus) is a solitary mammal that lives in the icy waters of the Arctic Circle region. It is the largest species of bear that lives in places with low temperatures, being much feared by other animals that inhabit the place.

Considered the largest terrestrial carnivore and main symbol of arctic resistance, the polar bear has been suffering from climate change.

Whit this information, we can conclude that the black bear has a tendency to proliferate, whereas the polar bear has a tendency to undergo faster extinction because they live in the arctic.

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