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
Misha Larkins [42]
3 years ago
13

Which of these BEST describes why certain bacteria have become resistant to penicillin?

Biology
2 answers:
hichkok12 [17]3 years ago
6 0
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm. Bacteria can do this through several mechanisms.
sveta [45]3 years ago
3 0
<span>Penicillin was so heavily prescribed by doctors that it led to certain, more fit, strains of bacteria to be able to survive.

</span>
You might be interested in
What is water and where does it come from
s344n2d4d5 [400]

Answer:

Water is a colorless and odorless substance and it comes from the ocean.

7 0
2 years ago
Read 2 more answers
True or false: Phosphorus will cycle through the atmosphere as one of its “stops”
Ipatiy [6.2K]
I’m not sure of my answer I think it’s false
4 0
3 years ago
Describe how finches of the Galapagos Islands adapted over time.
konstantin123 [22]

Answer:

Darwin observed the Galapagos finches had a graded series of beak sizes and shapes and predicted these species were modified from one original mainland species.

Darwin called differences among species natural selection, which is caused by the inheritance of traits, competition between individuals, and the variation of traits.

Offspring with inherited characteristics that allow them to best compete will survive and have more offspring than those individuals with variations that are less able to compete.

Large-billed finches feed more efficiently on large, hard seeds, whereas smaller billed finches feed more efficiently on small, soft seeds.

When small, soft seeds become rare, large-billed finches will survive better, and there will be more larger-billed birds in the following generation; when large, hard seeds become rare, the opposite will occur.

8 0
2 years ago
Can someone give me an example of a haiku of biotic interactions?
sergij07 [2.7K]

Answer:

Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms. Introduction In ecology and biology, abiotic components are non-living chemical and physical factors in the environment which affect ecosystems

5 0
3 years ago
Which of the following terms would be used to explain how trees can lift water to heights of ten stories or more?
kirill115 [55]

Answer:

All of the above are involved in moving water up to the branches and leaves

6 0
2 years ago
Other questions:
  • What sentence best supports the statement that hormones are involved in the regulation of homeostasis?
    11·2 answers
  • What are the abiotic factors in salt marshes?
    12·1 answer
  • Chemical reactions in cells are faster than the same reactions outside cells. True or false?
    7·1 answer
  • Which best describes a slump ?
    15·2 answers
  • 4-10 Assuming that the 30-nm chromatin fiber contains about 20 nucleosomes (200 bp/nucleosome) per 50 nm of length, calculate th
    13·1 answer
  • The process of protein building begins with what molecule?
    13·2 answers
  • What are Earth's ten biomes? A) tundra, taiga, grasslands, deciduous forest, chaparral, desert, desert-scrub, savanna, rainfores
    9·2 answers
  • Write a complete paragraph caption for this graph. Start with a topic sentence that describes the whole graph. In the body of th
    8·1 answer
  • Does every cell of your body pretty much have the same copy of dna?.
    13·1 answer
  • What is the difference between gametes and body cells.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!