BIOLOGY HIGH SCHOOL

If two substances are chemically combined and there is a release ofenergy, the reaction is described as
a. exothermic.
b. analytic.
c. endothermic.
d. catalytic.

Answers

Answer 1
Answer:

Answer:

a. Exothermic.

Explanation:

We know that there are several types of chemical reactions. In some reactions, the energy which is absorbed to break down the bonds of the reactants becomes less than the energy which is released at the time of forming new bonds of the products.

This means that in the whole reaction, energy is released as either light or light. This type of reaction is called an exothermic reaction.

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What are some ways we can stop global warming in the arctic?


Help!

Answers

Answer:

Reducing your carbon emissions and dependence on fossil fuels can help save the Arctic.

Discover practical ways you can make a difference, from joining our campaigns to shopping greener at the supermarket and making your home energy efficient.

Answer:

  • Reducing your carbon emissions and dependence on fossil fuels can help save the Arctic.
  • Discover practical ways you can make a difference, from joining our campaigns to shopping greener at the supermarket and making your home energy efficient.
  • Tell your government you want them to back green energy – to fight climate change and stop the rush to exploit Arctic energy resources.
  • Reduce Water Heating Requirements.

That's it...

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Which structure makes proteins using coded instructions that come from the nucleus?A.Mitochondrion
B.Ribosome
C.Golgi
D.Vacuole

Answers

The answer is B.Ribosome

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What theory says that all living things are composed of cells? It also says that cells are the basic units of structure and function in living things and that new cells come from existing cells. A. Evolution
B. Boveri–Sutton chromosome
C. Genetic determinism
D. Cell

Answers

The Cell Theory is correct.

What category of drugs in the five-category system is reported to have fetal risks but can be used in a pregnant woman if the potential benefit outweighs the risk?

Answers

Answer:

Category D drugs

Explanation:

There are five categories of drugs, they include: categories A, B, C, D and X. Research shows that category D drugs have possible fetal risks, however, the potential benefits on the mothers still outweighs the risk. An example of a category D drug is Losartan.

Category A drugs have no evidence of risk on fetus, an example is folic acid.

Category B drugs also show no adequate evidence of risk on the fetus. An example is metformin.

Evidences shows Category X drugs have an adverse effect on the fetus, hence the risk outweighs the potential effect. An example is Methotrexate.

Your heart functions in your body as a(n) A. series of joints responsible for endurance.
B. organ for absorbing vitamins and minerals.
C. filter for impurities.
D. muscle that helps to pump oxygen around the body

Answers

Your heart is a pump that helps pump oxygen throughout your body. Your heart replenishes your blood with oxygen so that your cells can function properly. So the correct answer is D. muscle that helps to pump oxygen around the body.

Photosynthesis and respiration are alike in thatthey both
(1) require the Sun as a direct source of energy
(2) result in the production of glucose molecules
(3) require specific catalysts
(4) occur within mitochondria

Answers

Both photosynthesis and respiration require specific catalyst.
Why not the other answer?
(1) only photosynthesis require the sun as a source of energy,respiration use glucose.
(2) photosynthesis result in the formation of glucose,respiration result in the formation of carbon dioxide.
(3)Only respiration occur in the mitochondria,photosynthesis occur in the stroma of the chloroplast.
Answer is 2 because both of them require specific enzyme and as you know enzymes are biological catalyst. 
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