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stepladder [879]
3 years ago
5

Most _______________ are vertebrates that have a well-defined head and backbone, plus an internal skeleton made up of bone or ca

rtilage.
Biology
1 answer:
kipiarov [429]3 years ago
8 0
The answer is Chordates

Chordates belong to the pylum Chordata of the Animal Kingdom.They have the following characteristics;
Lower vertebrates have a notochord which is a hollow nerve chord that is located dorsally of the animal while higher vertebrates have a vertebral column of bone and cartilage. They have a coelom which is a body cavity that differentiates higher vertebrates into organs and digestive tract.
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Which statement describes the difference between renewable and nonrenewable energy
Dmitriy789 [7]

Answer:

Option B. Renewable have no environmental concerns associated with them; nonrenewable cause damage to the environment.

Explanation: Renewable resources are those substances which can be recycled or reused after using it. Examples of renewable resources are hydro energy, solar energy and tidal energy etc. Renewable resources are occurs naturally while nonrenewable resources are those substances which cannot be recycled. These substances causes pollution in the environment. It is also found naturally. Examples are petrol, diesel and wood etc.

3 0
3 years ago
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14. The average brain weighs about
andrew11 [14]

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A. three pounds

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why are Gram-positive bacteria are more resistant than Gram-negative bacteria to antimicrobials that disrupt plasma membranes
NikAS [45]

Answer:

Gram positive bacteria are more resistant than gram negative bacteria to antimicrobials that disrupt plasma membranes because they have cell wall that is made up of a thick layer of peptidologlycan that contain teichoic and lipoteichoic acid to peptidoglycan.

Explanation:

Gram positive bacteria are bacteria that have thick wall made up of peptidoglycan and have no lipid membrane while gram negative bacteria are bacteria that have thin cell wall composed of peptidoglycan with lipid membrane.

Gram positive bacteria is resistant to antibiotics because of their thick cell wall composed of peptidoglylcan which contain teichoic and lipoteichoic acid , this help strengthen the plasma membranes and make them not to be attached by antimicrobial compared to gram negative that lack this.

6 0
3 years ago
NO LINKS PLEASE!<br> list two LAND BIOMES:
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Answer:

There are eight major terrestrial biomes: tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. ... Other biomes, such as deserts and tundra, have low primary productivity due to extreme temperatures and a shortage of available water.

Explanation:

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2 years ago
The motion of a body that travels around another body in space is called a rotation. True False
lukranit [14]

true, because it is called rotation on google

4 0
3 years ago
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