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Burka [1]
3 years ago
6

Depending upon its composition, each type of coal burns differently. The "older" the coal, the harder the coal, and the greater

percentage of ______ present.
Biology
2 answers:
rosijanka [135]3 years ago
3 0
<span>There is a higher quantity of hydrocarbons present, which are the source of energy in coal. These oils are formed from ancient plant materials and compressed down in the earth to form coal. Older coal tends to be darker, harder, and have more hydrocarbons packed in.</span>
Rufina [12.5K]3 years ago
3 0

Answer:

The answer is carbon

Explanation:

Complex molecules are made up of carbon bonded with other elements, especially oxygen and hydrogen and frequently also with nitrogen, phosphorus and sulfur. Carbon is abundant on Earth. It is also lightweight and relatively small in size, making it easier for enzymes to manipulate carbon molecules.

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Semmy [17]

Chromosome uncoiling occurs in Prophase.

5 0
3 years ago
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Freely movable joint is also known as synovial joint why​
natulia [17]

Answer:

Diarthroses are freely movable articulations. The bones of a synovial joint are covered by a layer of hyaline cartilage that lines the epiphyses of joint ends of bone with a smooth, slippery surface that does not bind them together. This articular cartilage functions to absorb shock and reduce friction during movement.

Explanation:

7 0
3 years ago
18) Which process occurs in fungi and has the opposite effect on a cell's chromosome number than does meiosis I?
grin007 [14]
That is binary fission, 'cause in this process, chromosome number doubles to it's original value whereas in meiosis it gets halved.

In short, Your Answer would be Option D

Hope this helps!
3 0
3 years ago
A body part that must resist unpredictable stress from multiple directions would likely be composed of which tissue
sukhopar [10]

Answer;

Dense irregular connective tissue - Dermis (skin)

A body structure that must resist unpredictable stress from multiple directions would logically be composed of dense irregular connective tissue.

Explanation;

-Dense irregular connective tissue has fibers that are not arranged in parallel bundles as in dense regular connective tissue. These tissues are found in several locations: the dermis of the skin, the walls of large tubular organs, such as the alimentary canal, in glandular tissue, and in organ capsules.

-Due to high portions of collagenous fibers, dense irregular connective tissue provides strength, making the skin resistant to tearing as consequence of stretching forces from different directions. It also makes up submucosa of the digestive tract, fibrous capsules of joints and lymph nodes, and some types of fascia.

7 0
3 years ago
Which zone of the ocean is most hospitable to life?
yaroslaw [1]
The epipelagic zone<span> of the ocean is most hospitable to life.</span>
7 0
3 years ago
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