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SSSSS [86.1K]
3 years ago
7

Compare and contrast an ecosystem driven by photosynthesis to an ecosystem driven by chemosynthesis.

Biology
1 answer:
DerKrebs [107]3 years ago
4 0

Both chemosynthesis and photosynthesis are processes used to create food.

Photosynthesis is a process plants use to create food (glucose), in which plants convert light energy into chemical energy.  

Chemosynthesis is the process by which food (glucose) is made by bacteria using chemicals instead of light energy.

An ecosystem driven by photosynthesis requires sunlight in order to perform photosynthesis.  An ecosystem driven by chemosynthesis does not require sunlight.  instead, chemosynthesis requires bacteria or other living organisms that derive energy from reactions involving inorganic chemicals.

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How does predation alter a population’s gene pool?
Phoenix [80]

Answer:

Option C

Explanation:

If we consider Darwin's theory we would realize that the species which are not able to survive are unfit or weak. Thus, predators usually attack species that can be easily targeted. Hence, it this way predation leads to selective pressure on any species and hence leads to creation of a fit gene pool. The weak organisms are removed and more fit organism could mate among themselves to produce healthy offspring.  

 Hence, option C is correct

8 0
3 years ago
How does the size of oxygen's nucleus affect the distribution of electrons in the water molecules?
Readme [11.4K]
How does the size of oxygen's nucleus affect the distribution of electrons in the water molecule<span>?

The </span>oxygen's nucleus<span> contains eight protons.</span>
5 0
3 years ago
In the test tube shown, what is produced by the snail that is used by the plant?
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Answer:

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Explanation:

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3 0
3 years ago
5.What is the role of enzymes in the DNA replication process? A. Enzymes read the DNA code and build a new DNA molecule from scr
Crazy boy [7]
A Enzymes read the DNA code and build a new DNA molecule from scratch
5 0
3 years ago
Lesson 01.04 Properties of Water
ryzh [129]

Answer:

1= In living organisms cells are composed of water or we can say that water is one of the important constituent of cells.

2= Hydrogen bonding import man properties to the water such as cohesion, high heat of vaporization, high heat capacity etc.

3= Because of high polarity, all polar substance get dissolve and make it universal solvent.

Explanation:

Solvent is the that part of solution which is present in large proportion and have ability to dissolve the solute. In simplest form it is something in which other substance get dissolve. The most widely used solvent is water, other examples are toluene, acetone, ethanol, chloroform etc.

Water is called universal solvent because of high polarity all polar substance are dissolve in it. Hydrogen is less electronegative while oxygen is more electronegative and because of difference in electronegativity hydrogen carry the partial positive charge while oxygen carry partial negative charge.

Hydrogen bond:

The hydrogen bond is the attraction between the toms which already take part in the other chemical bons. The one atom is hydrogen while other may be oxygen, nitrogen or fluorine.

The hydrogen bonding in water import man y properties in it such cohesion, high heat of vaporization, high heat capacity etc. The hydrogen bond hold the water molecules together.

Water create electrostatic interaction with other polar molecules. The negative end of water attract the positive end of polar molecules and positive end of water attract negative end of polar substance and in this way polar substance get dissolve in it.

Example:

when we stir the sodium chloride into water the cation Na⁺ ions are surrounded by the negative end of water i.e oxygen and anion Cl⁻ is surrounded by the positive end of water i.e hydrogen and in this way all salt is get dissolved.

7 0
3 years ago
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