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ryzh [129]
3 years ago
5

Which of the following situations accurately describes a difference between a food chain and a food web? Select one:

Biology
2 answers:
butalik [34]3 years ago
7 0
7.) The correct answer in this question is option B. A carnivore eats both a rabbit and a mouse in a food web.

8.) Most energy enters the ecosystem through the process of photosynthesis.

9.) The maximum number of links in a food chain is five.
Natasha2012 [34]3 years ago
6 0
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! :-) 

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Which best explains the role of chlorophyll in photosynthesis?
Tasya [4]

Answer:

B. absorbs energy from the Sun

Explanation:

This is what Chlorophyll does. Chlorophyl's main job is to collect the energy from the sun, and then, it can help the plant make the glucose (plant food).

Look at picture for more explanation. (with picture explanation coming below Extra info)

Extra info:

I learned in my class, that Chlorophyll is on the top most layers under the epidermis and dermis of the leave's skin. There is first the Epidermis, then there are lots and ltos of chloroplast cells, then there are chlorophyll cells in it.

With Picture explanation:

1st image:

The first image shows the leaf's structure. First, you can see the epidermis (on the top), then you can see all those light green round-edged-boxes, those are all the chloroplast cells, then, inside them, are darker green cells, they are the chlorophyl cells.

2nd image:

The second image shows the structure of a chloroplast cell.

The giant light green part on the outside is the chloroplast, then inside that, there are green things, which are the chloroplast, (here they are called thylakoid, because that's the scientific word for it). And then, the other things shown are just extra info.

---------------------------------------------------------—----------------------------------------------

Thanks!

Answered by: FieryAnswererGT

#learnwithbrainly

Want to thank me? Mark me brainliest! I'll get happy, and You'll get happy! YEY!

8 0
2 years ago
Many novel approaches are being investigated as an alternative to antimicrobial drugs. For example, researchers are testing the
Alisiya [41]

Answer:

Bacteriophage

Explanation:

Antimicrobial resistance is the leading world concern for the medicine producing companies. The antimicrobial drugs are meant to kill the microbes but microbes are also developing resistant to these drugs. So we need a high dose of that particular drug to kill the same organism next time. The antimicrobial medicines are applied to all microorganism without distinguishing them but bacteriophage is emerging as solution for the problem.

Bacteriophages are viruses that attack the bacteria. Bacteriophages are highly specific to bacterial cell and attack the receptors on the membrane of specific bacteria species. So these can be used to kill or target the specific species of bacteria instead of applying the antimicrobial drug to all bacteria.

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3 years ago
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A manifestation of local blood flow regulation.
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3 years ago
Which element provides strength to the exoskeletons of clams and oysters?
Afina-wow [57]
Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
7 0
3 years ago
What happens to ordinary plants (not C 4 or CAM) when stomata close?
Rom4ik [11]
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3 0
3 years ago
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