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matrenka [14]
3 years ago
9

A tributary is a river that

Biology
2 answers:
zhannawk [14.2K]3 years ago
7 0
A tributary is a river that ends at the place where it
runs into another river, and feeds the bigger one.
konstantin123 [22]3 years ago
3 0
A river that merges with a bigger one
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Which of the following situations accurately describes a difference between a food chain and a food web? Select one:
Natasha2012 [34]
Lets look at your first question. A food chain is a linear (line) relationship between organisms. It shows who eats what and who gets eaten. The energy is passed up the chain from one organisms to the next. A food web is a series of interconnected food chains. It can show one organism being preyed upon by several predators. The answer choice A is really referring to an energy pyramid, but it is true in any ecosystem that only 10% of available energy is passed to the next trophic level. B and C are both true statements as well. D is completely false because 90% of energy is lost, not retained. So with that said, there is more than one correct answer here. I have included a diagram so you can see the difference between the two. 

For Question 8, the key to understanding this is that sunlight is the main source of energy for any ecosystem. Plants (autotrophs) use the sunlight to convert it to sugars (glucose) which is a compound that heterotrophs can utilize. This process is called photosynthesis. :-) 

Question 9: So in a food chain, you typically start with the producers (plants), then to the primary consumer, then secondary consumer, then tertiary consumer, and in some cases you may have a quaternary consumer. That is 4 links. However, we are forgetting the role of decomposers at all levels of this food chain, and that would add an extra link. In summary, you wouldn't typically see more than 5 links in a food chain. 

I hope all of my explanations are helpful! Good luck! :-) 

6 0
3 years ago
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In the equation, C6H12O6 is a
dangina [55]

Answer:

Glucose

Explanation:

8 0
3 years ago
Gene testing is foolproof since it scans the building blocks of humans. Please select the best answer from the choices provided.
Harrizon [31]

False

reason -

Gene testing is not full proof as there are  possibilities of discrepancies in it based on the testing procedures used and the condition of sample. Since we human beings have the same genomic structure there are chances that our DNA may match with other people who do not share a heredity with our family. Basically statistical probability is used to determine probability of paternity, relationship of any kind etc. among two individuals . usually A 99% or higher percentage of probability is considered conclusive. and thus it gene testing can not be considered as full proof

6 0
3 years ago
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Water will act as a Brønsted-Lowry acid with which of the following molecules?
rusak2 [61]
According to Bronsted-Lowry acid concept
 an acid is a that donate a proton" and a base is a "proton acceptor."so
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. <span>NH3+H2O→NH+4+O<span>H<span>−
so correct option is NH3
hope it helps</span></span></span>
7 0
3 years ago
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16. The goals of biodiversity conservation include all of the following EXCEPT (1 point) protecting individual species. introduc
ludmilkaskok [199]
The best answer is: introducing exotic species into <span> new environments. This can be actually bad, as new species can actually reduce the biodiversity in the environments to which they're introduced</span> , such when cats hunt indigenous birds.

I was a bit thinking about the last option too: making sure local people benefit from conservation efforts. This is not one of the classical goals of the conservation efforts, but since the previous one is definitely correct, i don't this one is. (it's not that it's not a goal, but it isn't a main focus)
4 0
3 years ago
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