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lawyer [7]
2 years ago
10

Stretching a multijoint muscle is achieved by positioning the joints to cause the muscle to be in its:

Biology
1 answer:
docker41 [41]2 years ago
6 0

your answer is lengthened position

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Explain how it is possible for nutrients to be transported to the cells of a flatworm with no circulatory system.
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Answer:

Flatworms are beings that do not have a heart, veins, arteries, capillaries, hemolymph, or some type of circulatory fluid. Their circulation occurs between cells or intercellularly and they are responsible for transporting substances by diffusion from cell to cell.

Explanation:

Flatworms are considered multicellular eukaryotic organisms. This implies that in their cells they have a cellular nucleus, in which the DNA is contained, structuring the chromosomes. Likewise, they are made up of several types of cells, each one specialized in a specific function. They lack a structured circulatory system as such. Because of this they do not have specialized structures such as a heart or blood vessels, however, the circulation of certain substances is established between their cells. This is done thanks to the diffusion process. Substances pass from one cell to another through this process.This does not apply to all flatworms, since in some species of bog and digenae there is a certain organization and some very small conducting vessels known as the endolymphatic system, the which forms a kind of plexus in the parenchyma.It should also be noted that some species do not even have a digestive system, being the digestive tract the one in charge of digestive functions and the distribution of the nutrients they receive.

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The majority of mutations have neither negative nor positive effects on the organism in which they occur.
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A scientist is observing ___ when he or she is following a series of steps to solve problems.
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Metabolism is a set of chemical reactions happening within an organism. These reactions are necessary to maintain the living state of cells, allowing them to reproduce, grow, and respond to environment.
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Eric throws a basketball straight up into the air. as it rises, which form of energy is increasing?
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As the ball rises it DECREASES kinetic energy which means it INCREASES in gravitational potential energy
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