What is true of the energy that is passed from one trophic level to the next in a food chain?


Answer 1


The real answer to this question is about 10% of the stored energy of one level becomes stored energy at the next level higher.

Think about it, when a consumer eats the producer it also consumes the energy the producer stored and as the food chain grows the energy is passed through all. The only time the energy is released into heat is when a consumer dies and decomposes, and even then all of the energy isn't released.

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Answer 2

The choice that is true of the energy that is passed from one trophic level to the next in a food chain is about 10% of the energy passed from one level to the next is released as heat.

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What signals that a pine tree is capable of reproduction?


The presence of cones in the tree signals its readiness for reproduction, as the cone contains the seeds! c:
Little sprout that are near the tree and sal in certain areas

Which best describes the scientific process



A way to answer scientific questions



´╗┐is the step in science when you do an experiement

1. Make a question

2. background research

3. create a hypothesis

4. test/experiement

5. analyse

6. conclusion

7. share - because when you share it to others, others can repeat your experiment and prove is it true or false or is it really science

Dichotomous Keys and branching diagrams organize different types of information about classification. how are these tools used differently?



In a dichotomous key you named then by their traits while in a branching diagram it already has the name and it's traits.


In dichotomous keys (also called single-entry or single-entry keys), a fixed sequence of alternatives must be followed, where multiple steps (including one or more characters) present two contrasting options (character states). As a result, only a single series of choices results in correct identification. Thus for each taxon there is a specific sequence of steps. An important factor of the dichotomous keys is that through them it is possible to name living beings through their characteristics.

A branch diagram can be used to represent a probability space. It can also be used to represent the various possibilities of a permutation or combination. This type of diagram provides a convenient way to organize information from a set of conditional events. In biology, the branch diagram shows the name and characteristics of a being and its relationship to different beings and characteristics.

To show the different levels of classification and divide among species, and different organisms on planet Earth. It also creates a universal "language" for scientists around the world when referring to organisms (cougar & puma are the same animals; different name)
Example: The American Alligator and the Chinese Alligator (look it up!) are in the same family and genus, but are not the same species.

Water at the top of a slope has potential energy


You are correct. The higher something is, the more potential energy it has.
it is true. Water at the top of a slope has potential energy.

How many chromosomes do you receive from each parent


In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.


The answer is 23.


What actions help protect the land?


different laws actually help protect the land

Picking up litter
Using electric cars