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gizmo_the_mogwai [7]
3 years ago
9

Of the inner planets, the planet with the highest percentage of atmospheric oxygen is A) Earth B) Mars C) Mercury D) Venus

Biology
2 answers:
Mamont248 [21]3 years ago
6 0

Answer: The answer is Earth

Explanation:

serious [3.7K]3 years ago
5 0

Answer:

A) Earth

or C) Mercury

sorry i wasn't that much help but i narrowed it down.

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How do enzymes speed up chemical reaction?
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In the human body, enzymes function as catalysts to speed up reactions by helping to lower the activation energy needed to start a reaction.

Although some RNA molecules can also act as enzymes, proteins constitute the vast majority of enzymes.

The primary function of enzymes is to decrease the activation energy, or the energy required for a process to start. Enzymes bind to reactant molecules and hold them in place to enable the chemical bond-forming and bond-breaking processes.

The energy of the transition state, which products must pass through in order to become reactants, is reduced by enzymes. 

Instead of using energy to move till they collide at random, they might group the reactants together to make it easier for them to interact. They could direct the process along a different pathway with lower activation energy.

By tying them to the active site, they might place the reactants correctly. As a result, the reactants can interact with less energy because they won't have to fight against intermolecular forces that would normally try to separate them.

Temperature, ionic circumstances, and environmental pH all have an impact on how quickly an enzyme.

For more information on enzymes: brainly.com/question/13981863

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Why is it believed that fossil fuels, such as coal, store energy from the sun?
elixir [45]

Answer:

The answer is d

Explanation:

Because

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2 years ago
Scientists cannot define life, but they can list characteristics that are true of all life
pychu [463]
What are you asking for here? we need a solid question not a statement.

i'd say that the statement is true. we cant define life because we do not know what life, in essence, is. we can define, however, the characteristice of all living things:
Movement
Respiration
Sensitivity

Nutrition
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MRS NERG
5 0
3 years ago
Describe the chemical components of DNA.
Slav-nsk [51]

DNA is composed of nucleotides, which are composed of three parts:

1. A five carbon carbohydrate (pentose)

Pentose is classified as a monosaccharide (simple carbohydrate), and its molecular formula is represented by (CH_{2} O)n. They are water soluble molecules with sweet taste. Monosaccharides may have from three carbon atoms (trioses) to six (hexoses). In DNA is present pentose (5 carbon atoms)

2. A nitrogenous base

Nitrogenous bases are ring-shaped compounds that contain nitrogen in their molecular structure. They are classified into two groups: purines and pyrimidines

The purine bases are adenine (A) and guanine (G). They are larger and contain more than one ring in their structure,.

The pyrimidines, cytosine (C), uracil (U) and thymine (T), are smaller and composed of a single ring.

3. One or more phosphate groups

A phosphate consists of a trivalent anion that contains one phosphorus atom and four oxygen atoms. Its molecular formula is expressed by (PO_{4} ^{-3}).

3 0
3 years ago
Which statement below is true of both chloroplasts and mitochondria?
MissTica

Answer:

Its either B or D but i think its B

Explanation:

i hope it B if not then its D

7 0
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