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3 years ago

What are 3 ways that compounds and mixtures differ

Biology

1 answer:

professor190 [17]3 years ago

5 0

Answer:

3 ways to understand the differences between compounds and mixtures are described below in explanation.

Explanation:

1. In a mixture, no new product is formed. It is a simple tacking of two molecules without any chemical reaction occurring. For example water and sand. Compound is a new substance formed by chemical reactions occurring between various molecules. For example, carbon and oxygen combine to form carbon dioxide.

2. A compound is always homogeneous whereas a mixture can be homogeneous or heterogeneous.

3. Compounds have a fixed boiling and melting temperature. Whereas, mixtures do not have a definite melting and boiling temperature.

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Base your answer to the question on the information below and on your knowledge of biology.

vodomira [7]

Answer:

They can perform photosynthesis.

Explanation:

Autotrophs are organisms that can produce their own food, and heterotrophs are organisms that feed on other organisms. This means that the ameba and paramecium can eat only other microorganisms.

The euglena is not limited to this. Hypothetically speaking, if there were no other microorganisms around it (which is unlikely), the euglena would not die as long as it is exposed to sunlight. Thanks to chloroplasts, organelles that contain chlorophyll, it can perform photosynthesis - a process in which, with the help of sunlight, carbon dioxide, minerals, and water are used to synthesize food.

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3 years ago

Which one of the following statements is true of enzyme catalysts? A) Their catalytic activity is independent of pH. B) They are

muminat

Answer:

D) They can increase the reaction rate for a given reaction by a thousand-fold or more.

Explanation:

Enzymes are like catalysts with the only difference that they are bio-molecules. Biochemical/chemical reactions are slow because of 'transition state barriers' which require a lot of energy to overcome so enzymes rather than overcoming transition state barrier provide an alternate pathway for biochemical reactions which require comparatively less energy. Thus presence of an enzyme leads to an increase in reaction rate because alternate pathway which requires less energy makes the rate of chemical reaction rapid by a thousand-fold or more.

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3 years ago

Why do different individuals of the same species have different traits?

deff fn [24]

Individuals of the same species have different traits because they have different genes which code for different proteins. B would be the correct option.

<h3>Variations</h3>

Organisms of the same species can have different traits due to a difference in their proteins.

Genes are responsible for proteins and proteins are an expression of traits. Thus, with different proteins come different traits.

Hence, once there is a difference in the DNA sequence of organisms, different proteins will be produced, and different traits will be expressed.

More on variations can be found here: brainly.com/question/17598399

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2 years ago

Question 14

ipn [44]

Answer: Initially part of the flower will be blue and part will be red, but eventually both colors will appear in all parts of the flower.

Explanation:

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2 years ago

What bias conditions must be present for the normal operation of a transistor amplifier?

Maksim231197 [3]

The bias conditions that must be present for the normal operation of a transistor amplifier will be those in which the emitter-base junction is forward biased, and the collector-base junction will be reverse biased.
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3 years ago