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3 years ago

Select all that apply.

Biology

2 answers:

weqwewe [10]3 years ago

6 0

Your answer is all of the above

yawa3891 [41]3 years ago

4 0

After the fossils are buried in the mud the soft tissues start to decompose rapidly. Leaving only the hard shells or bones of the animal. With time, sediment starts to build up on the top and then hardens into rock. The bones then start to decay, minerals start to enter and then end up replacing the organic material cell by cell in a process that is known as "petrification." So the answer you are looking for is B, Mud can prevent oxygen from reaching the dead organism.

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Brian often interrupts his teacher while she is speaking and frequently forgets to complete his homework assignments. He also ha

Anton [14]

Answer:

Brian most clearly exhibits symptoms of ADHD

Explanation:

ADHD stands for Attention Deficit Hyperactivity Disorder is a medical condition where the affected person develops different brain developmental process that leads to poor attention,restlessness,impatient or impulsive etc.

This type of symptoms are mainly found in children and it may lasts upto adulthood.

This type of behviour affect the child in school and at home.

To cure this disease,the affected person should consult the doctor,apply different therapy,medicines are also used to cure this disease.

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3 years ago

If it takes 98.8 kcals to break one C--H found in an organic molecule, how many kcals does it take

steposvetlana [31]

395.2kcal

Explanation:

Given parameters:

Energy required to break one C-H bond = 98.8kcals

Unknown:

Energy required to break methane = ?

Solution:

The bond dissociation energy is the heat energy absorbed in breaking a covalent bond in the gas phase to its constituents elements.

Solving

CH₄ has 4 C-H bonds

To break 1 C-H bond, 98.8kcals of energy was used,

To break 4 of the bonds; 4 x 98.8kcals will be used = 395.2kcal

Learn more:

Hydrogen brainly.com/question/7213980

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8 0

3 years ago

Match the description to the type of energy.

attashe74 [19]

Answer:

1)diaphragm vibrations- sound waves

2) Changing magnetic fields- Electrical energy

3)sound waves- Mechanical energy

Explanation:

A changing magnetic field induces an electromotive force and then an electric field which contains electrical energy

Sound energy is a form of energy that can be heard by humans. Sound is an example of a mechanical wave because it consists of physically oscillatory elastic compression.

A diaphragm is a thin surfaced cone used to produce sound. It is caused to vibrate using electromagnetic energy.

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3 years ago

Some scientists would say that nucleic acids are

Gre4nikov [31]

Answer:

The nucleic acids are the most important molecules in living cells beacuse It is the macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
The proteins are more important because Our body needs protein to stay healthy and work the way it should. More than 10,000 types are found in everything from your organs to your muscles and tissues to your bones, skin, etc. Protein is also a critical part of the processes that fuel your energy and carry oxygen throughout your body in your blood.
The life could not continue without a supply of carbohydrates beacuse Carbohydrates are important to the daily lives of living organisms. They store energy (starches), provide energy for cells (glucose), and provide structure to plants and some animals.

5 0

2 years ago

Describe the DNA transcription process, which involves the transfer of the DNA genetic code onto an mRNA molecule.

Bad White [126]

DNA is present within the nucleus of the cells and it is responsible for the production of various proteins and enzymes to keep the cellular activity going on. However, it cannot directly do so and seeks help of the messenger RNA molecules. DNA transcription is a process that involves transfer of the DNA code from the DNA to the mRNA molecule for the production of proteins.

6 0

3 years ago

Read 2 more answers