BIOLOGY HIGH SCHOOL

How much heat energy (in megajoules) is needed to convert 7 kilograms of ice at –9°C to water at 0°C? A. 3.26 MJ
B. 2.48 MJ
C. 3.09 MJ
D. 2.13 MJ

Answers

Answer 1
Answer: The heat required to change the phase of a substance can be calculated by using the formula,

q = mCΔT where q is the heat needed, m is the mass of the substance, C is the specific heat capacity and ΔT is the change in temperature.

q = 7000 g (4.18 J/ g °C) (0°C - (-9°C))
q = 263340 J or .26334 MJ

I think the answer is not given in the choices.
Answer 2
Answer:

I think the answer is B. 2.48 MJ, correct me if I’m wrong I’m studying  this

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Which school of thought studies how cognitive processes help people and animals develop habits?a. psychoanalytic theory
b. functionalism
c. Gestalt psychology
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Answers

The right option is b. functionalism

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Answers

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B. shape.
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Answers

c.  concentration;  moves from areas of high concentration to areas of low\
Its C. Concentration.
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Answers

Great minds combined with technological advancements have a lead to creations and achievements that would have been impossible. Whatever great scientist of the past has achieved have already been surpassed or improved through modern and innovative ideas and processes. An excellent example of which is the direct manipulation of an organism’s DNA, also known as genetic engineering or genetic modification (GM). Coming from the terms genes and modify, the entire process is something out of a science fiction movie. Well, it used to be that way until the practice was perfected and used in actual applications. Genetic engineering made it possible to add new DNA or alter bad ones.

Humans get which of the following kinds of products from plants?a. medicines
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Answers

d. all of the above we get all of those

All of the above die comes from flowers and medicines come from herbs. So the answer is all of the above. Thanks for asking me.

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b.

omnivores

c.

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d.

consumers

Answers

All animals are considered consumers because they eat producers, in the tropic level there are several layers that are primary, secondary, and tertiary consumers, hence option D is correct.

What are consumers?

Consumers are defined as an organism, they do not synthesize their own food and depends on the consumers, in the ecosystem plants are considered producers, that are eaten by animals (consumers).

Plants are producers, they are able to synthesize organic material with the help of photosynthesis and this provides energy to the other organism that consumes these plants.

In every topic level in the energy pyramid, each organism depends on another tropic level for energy needs, the consumer depends on their energy need to producers.

Therefore, it is suggested that all animals are consumers.

Learn more about consumers, here:

brainly.com/question/15869639

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Consumers. Obviously all animals are not b or c as there are animals that are both. Plants are producers as they produce energy, and animals consume the energy making them consumers. 
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