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3 years ago

Would fibrous and cartilaginous joints be able to perform their functions if they had joint cavities? Explain.

2 answers:

8 0

Joint cavities are spaces in between the bones that make up a joint. Fibrous and cartilaginous joints naturally have cavities in them. The cavities are encapsulated by articular cartilage and synovial membrane. So, fibrous and cartilaginous joints would be able to perform their functions if they had joint cavities.

Delvig [45]3 years ago

4 0

The joint cavities are composed of two bones covered by the hyaline cartilage. The joint cavities allow for the movement of the two articulated bones. The fibrous and the cartilaginous bones have no joint cavities as they require little to no movement. These joints are connected tightly by the cartilage, such as in the spinal column. if the joint cavities were present in these joints, then these structures will not be held tightly and hence, they could not perform their function well.

Hence, the answer is 'the fibrous and cartilaginous joints will not be able to perform their function if they had joint cavities'.

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Some people argue that evolution, which is generally associated with progressive increases in the

yKpoI14uk [10]

This argument would not be valid because it fails to take into account the mechanisms through which evolution occurs and misunderstands the second law of thermodynamics.

The second law of thermodynamics states that the total entropy of a system must always increase. The argument stating that this law disproves evolution given that evolution can be considered as a decrease in entropy, fails to realize that the second law states that the total entropy must increase, this does not mean that entropy cannot decrease at one point, to then increase more so at another.

The other aspect of evolution that this argument fails to account for is that evolution is a chaotic process. Evolution, though having a final product that may be considered as increasing in organization, is at heart a chaotic process caused by random mutations and the fragile process of natural selection. Therefore, rather than disprove it, the second law of thermodynamics is actually the driving force behind continued evolution.

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3 years ago

Which of these engulf bacteria and break them down?

nordsb [41]

Phagocytes

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3 years ago

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Which of the following best describes the solar radiation absorbed by and radiated from earth

KiRa [710]

I would say your answer is The Earth’s surface is responsible for a small fraction of heat radiation to space

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3 years ago

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"A research group is looking for a way to use spider silk, valued for its high tensile strength, to make extremely strong ropes,

tatuchka [14]

Answer:

The correct answer is "Transgenics".

Explanation:

The missing options of this question are:

A. Artificial selection

B. Transgenics

C. Bioreaction

D. Recombination

The correct answer is option B. "Transgenics"

Transgenics is a term used to describe the artificial insertion of one or more DNA sequences to an organism that would normally not have it. In this example, the term transgenics applies to the cows that serve as hosts for the production of the spider silk. The process transgenics is what gives the name to terms such as "transgenic food", "transgenic plants" or "transgenic animals".

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3 years ago

Which THREE statements correctly describe the properties of water?

grandymaker [24]

CORRECT STATEMENTS
> Water forms hydrogen bonds with other polar molecules. 
> Water is a polar molecule. 
> Water dissolves more ionic compounds.

Water is a polar molecule because of its uneven distribution of electron density. It is made up of two hydrogen atoms and one positive atom.
Since water is a polar molecule, it forms hydrogen bonds with other polar molecules. Though these bonds are relatively weak, however, there are so many of them present in water.
Water also dissolves most ionic compounds due to the fact that water is a universal solvent. When these compounds are added to water, there will be an interaction between the individual ions and the polar regions of the water molecules and disrupts the ionic bonds.

INCORRECT 
> Liquid water is less dense than water vapor. - Liquid water has a higher density than water vapor. The fact that water vapor rises indicates that it is less dense than water.

>Water dissolves more hydrophobic substances. - Hydrophobic substances do not dissolve easily in water. It is termed as 'hydrophobic" because it means water-fearing.

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3 years ago