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
Ulleksa [173]
2 years ago
14

Penicillium (the source of the antibiotic penicillin) is a mold that secretes a toxin that kills bacteria and other organisms. P

enicillium, however, is not harmed by this toxin. This is an example of:_______
a. predator-prey.
b. commensalism.
c. mutualism.
d. amensalism.
Biology
1 answer:
zheka24 [161]2 years ago
5 0

Answer:

This is an example of amensalism (Option d).

Explanation:

The interaction between penicillium and bacteria is a typical example of amensalism.

Amensalism refers to a biological relationship established between two organisms, in which one of them avoids the growth, development, or survival of the other one. In this interaction, one of them is strongly affected by the other one, which does not seem to be affected at all. Antibiosis is referred to as amensalism interaction.

<u>Antibiosis</u> is the interaction in which one of the species secretes a chemical that kills the other species organism or inhibits its actions by causing severe damage. The organism that releases the toxic substance is called the <u>inhibitor</u>. For the inhibitor species, this relationship is neutral because it does not seem to be beneficiated or affected.    

Another classic example of amensalism is those plants that secrete chemicals to damage or kill other plants that live near them. In this way, the secretory plants may live and grow with no competition.  

You might be interested in
Normally, the hydrostatic pressure difference between capillary fluid and interstitial fluid favors movement of fluid __________
timofeeve [1]

Answer:

out of

into

Explanation:

As pressure exerts force, Hydrostatic pressure is a type of force that occurs in fluid e.g (interstitial fluids) on the walls of the capillary. The helps to carry fluid-like materials out of the tissue capillary. There are quite bunch of relative factors affecting the hydrostatic pressure which include; the liquid density and distance beneath the liquid surface,force of gravity.

On the other hand, The protein osmotic pressure difference between capillary fluid and interstitial fluid normally favors movement of fluid into a tissue capillary. This protein substances consist of albumin, plasma protein etc. From our knowledge of osmosis as well, we knew it is the movement of substances through a semi-permeable membrane from the region of higher concentration to a lower concentration.  Therefore the protein osmotic pressure bring about movement of fluid like substances into the tissue capillary.

7 0
3 years ago
3.Commercial development in the U.S. has resulted in an increase in the number of roads, housing developments, shopping centers,
Art [367]

The correct answer is option A, that is, development often causes habitat fragmentation, which can threaten biodiversity.

Fragmentation is usually illustrated as a reduction in some of all the kinds of natural habitats in a landscape, and the differentiation of a landscape into smaller and more isolated segments. With the development of the fragmentation process, the ecological influences will modify.  

Fragmentation can be a result of natural procedures like floods, fires, and volcanic activity, but it is more generally caused due to human activities like an increase in the number of roads, housing developments, shopping centers, and parking lots.  

With the enhancement in human activities, the effect of fragmentation become more. Eventually, it results in the devastating influences on the local species, a complete modification to the landscape, and the loss of the region's wilderness heritage.  


3 0
3 years ago
Rosalind Franklin had strong skills in ___________.
Molodets [167]

Answer: science

Explanation: she was a scientist

4 0
3 years ago
The Energetic Cost of Mismatch Repair. In an E. coli cell, DNA polymerase III makes a rare error and inserts a G opposite an A r
joja [24]
The séquense of GATC is 751
6 0
2 years ago
Why do viruses need a host cell to survive?
sesenic [268]

Answer:

viruses are at the borderline of living and non-living organinsms outside the body of living host they are non-active and they cannot grow without their host

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • What will be the effect of placing a plant cell in a hypotonic solution? A) The plant will wilt. B) The cell will shrink in size
    13·2 answers
  • The _______ system is like a chemistry lab which breaks down complex proteins and starches into simple chemicals
    11·1 answer
  • 18) __________ are found in BOTH viruses AND in living single-celled organisms, such as protozoans and bacteria.
    8·1 answer
  • WILL GIVE BRAINLIEST!!
    14·1 answer
  • Which of these is an example of a chemical change?
    8·2 answers
  • Please help on all questions
    8·2 answers
  • Please help if you can thank you ^^
    6·1 answer
  • What causes differences in air preassure? ​
    9·1 answer
  • In 1980 Mount St. Helens in Washington state erupted. What were some of the destructive forces that occurred
    8·1 answer
  • 20.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!