An energy resource that can be replaced by nature in a relatively short time is known as a(n): a. replaceable energy resource b. renewable energy resource c. inexhaustible energy resource d. non-renewable energy resource

Answers

Answer 1

Answer: An energy resource that can be replaced by nature in a relatively short time is known as a "inexhaustible energy resource" but these are very rare in nature.

Answer 2

Answer:

Answer: b. renewable energy source

Explanation:

Renewable resources: These are resources that can be replenished with time through natural process.These are the sources which never depletes completely.For example: bio mass energy, solar energy etc.

Non-Renewable resources: These are resources that cannot be replenished with time through natural process. These are the sources which are used in wise manner so that they do not get depleted. For example: coal, petroleum etc.

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How have scientific advancements led to an increase in food safety?

Answers

Scientific findings of how to eliminate bacteria with uses of UV light and heat energy were used to protect the life span of food without harsh chemicals.

Answer: all of the above

Explanation:

Which class of organic molecules provides long-term energy storage. a. carbohydrates b. proteins c. starches d. lipids

Answers

Answer: D - Lipids
Lipids provide a long term energy storage because they contain longer C-H bonds compared to the other organic molecules, making it easier for them to store larger amount of energy. Moreover, upon burning they produce twice the amount of calories compared to that of the carbohydrates.

Define universal solvent.

Answers

Universal Solvent- is a substance that can dissolve in water

Compare autotrophs to heterotrophs, and describe the relationship between these two groups of organisms.

Answers

The hetotrophs depend upon the Autotrophs for making their own food and comparison of autotrophs to heterotrophs are as follows.

Comparision of autotrophs and hetotrophs.

Autotrophs

An organisms that prepare their own food through photosynsthesis process is called autotrophs.
Autotrophs also known as producers.
Autotrophs store chemical energy in carbohydrate food molecules they build themselves.
Example of autotrophs are plants, algae and some bateria.

They cannot eat other organisms and their byproduct.
In food chain, autotrophs make up the first trophic levels.

heterotrophs

The organisms that cannot prepare their own food and depends on others.
It is also know as consumer.

The heterotrophs cannot store chemical energy in carbohydrate food molecule.
Example of heterotrophs are animals, fungi and many bacteria.
They can eat other organisms and their byproduct.
In food chain, heterotrophs form the next trophic levels after plants.

To learn more about Autotrophs here.

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Photosynthesis - Photoautotrophs use energy from sun to convert water from the soil and carbon dioxide from the air into glucose.Glucose provides energy to plants and is used to make cellulose whichis used to build cell walls. E.g. Plants, algae, phytoplankton and some bacteria. Carnivorous plants like pitcher plant use photosynthesisfor energy production but depend on other organisms for other nutrientslike nitrogen, potassium and phosphorous. Hence, these plants arebasically autotrophs.Chemosynthesis - Chemoautotrophs use energy from chemical reactions to make food. The chemical reactions are usually between hydrogen sulfide/methane with oxygen.Carbon dioxide is the main source of carbon for Chemoautotrophs. E.g.Bacteria found inside active volcano, hydrothermal vents in sea floor, hot water springs

true or false the mitochondriion organelle is considered the " mighty power house " because it makes ATP .

Answers

It is true.
ATP is the cells main energy carrying molecule, which the mitochondria makes

Which of the following types of algae would have rigid cell walls composed of silica?a. paramecium
b. euglena
c. diatoms
d. spyrogyra

Answers

c. It is among the most known form of phytoplankton and are usually unicellular!
You can find them arranging themselves in shapes by making colonies.

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