1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ryzh [129]
2 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]2 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]2 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! :-) 

You might be interested in
Which elements are present in all organic compounds
Art [367]

Answer:

c

Explanation:

4 0
2 years ago
Read 2 more answers
Are viruses alive? This question is debated among scientists throughout the world.
jasenka [17]
B is the best answer I hope it help
5 0
3 years ago
The _____"B” build bones and the _____ "C" cut away and clear out old bone.
MrRissso [65]

Answer:

A andC

Explanation:

.;

5 0
3 years ago
Explain two ways materials can enter the cell through passive transport. Include in your answer: the types of substance that is
blsea [12.9K]

Answer:

<em><u>Osmosis and facilitated diffusion</u></em> are two forms of passive transport that are integral to cellular transport mechanisms.

Explanation:

Cells surrounded by a bilipid layer or plasma membrane are amphiphilic, with their polar, hydrophilic lipid heads facing outward, while their hydrophobic non-polar lipid tails facing each other inward.

Although lipid-soluble molecules travel quickly through the bilayer, traveling across its surface into the cell is often difficult for charged and large molecules. Thus, transport proteins, pores and gated channels, transmembrane channels, embedded within the membrane, help to preserve selective permeability.

Across plasma membranes as a form of passive transport in cells, substances move via:

  1. osmosis - water molecules readily pass through the membrane;  the molecules move from high concentration regions to low concentration regions at will through the membrane- they move down their concentration gradient
  2. facilitated diffusion - channel proteins allow charged ions to move across the membrane. Sodium ions are able to pass freely through specialized sodium channel pores into some cells. These channels always remain open- the ions move down their concentration gradient.

3 0
2 years ago
Gene expression is centered upon the process of protein synthesis, in which the information from DNA is transcribed and translat
avanturin [10]
It is d I’m sure though it is b pretty sure explanation
5 0
2 years ago
Other questions:
  • A punnet square predicts a 9:3:3:1 ratio for phenotypes. Explain what that ratio means..
    7·1 answer
  • What is the genus of the popular fossils which are similar to "lucy"?
    10·2 answers
  • When converting from kilometers to meters, the decimal is moved _______.
    9·2 answers
  • Term referring to the process in which certain compounds increase in concentration within biotic tissues as they move up through
    11·1 answer
  • What is the weathering rate of quartzite?
    10·1 answer
  • Discuss the general causes of chromosomal diseases.
    12·1 answer
  • What gets passed from one cell to another in sexual reproduction
    6·2 answers
  • The part of the brain that distinguishes the human qualities that we have over animals is the
    12·2 answers
  • High average daily temperature and heavy annual precipitation are found in a?
    15·2 answers
  • Match the following strand of DNA with its complementary strand: C T T G A A C T G T A
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!