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
Ksenya-84 [330]
3 years ago
15

Penicillin is an antibiotic that was discovered in 1928. Today many species of bacteria have acquired resistance to penicillin.

This adaptation occurred as a result of

Biology
2 answers:
Oksi-84 [34.3K]3 years ago
4 0

Answer:

THE ANSWER IS C ( genetic mutation) ON USATestPrep because...

Explanation:

Many bacteria have acquired the ability to produce an enzyme called penicillinase, which destroys penicillin. All enzymes are proteins. The ability to produce the new protein penicillinase came from a change in the bacterial DNA: a genetic mutation.

mr Goodwill [35]3 years ago
3 0
Genetic mutation is the answer to your question
You might be interested in
Describe skin cells and their function
Flauer [41]
Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body. Four types of cells make up the skin, and they are produced mainly in the epidermis near the basement membrane.
3 0
3 years ago
Data was collected concerning Galapagos bird beak size over time. There are several species finches, and they are also known as
astra-53 [7]

Finches adapt to the new conditions such as drought by changing the size, shape and depth of their beaks. Beak morphology varies according to drought conditions. Since after the drought, vegetation dries out and the hard, big, tough seeds remain, only the finches with deep beaks will survive. Finches adapt via their beaks to different foods sources and different local conditions.

4 0
3 years ago
Read 2 more answers
Which factors that affect personal health are the most easily controlled?a.geneticb.environmentalc.lifestyled.global
max2010maxim [7]
The factors that affect personal health that are the most easily controlled are c) lifestyle.
You can easily change the way you are living, whereas these other things cannot be. 
4 0
4 years ago
What is the appropriate dose of 1:10,000 (0.1 mg/ml) concentration of epinephrine for endotracheal administration to a baby weig
vlada-n [284]
I believe the appropriate dose will be 1.5 mL, 
Epinephrine is used for both allergic reaction and heart attacks, in an effort to increase blood flow through veins and to reduce swelling in airways. When epinephrine is recognized by receptors on smooth muscles, it causes airway-blocking muscle constriction to subside. Other drugs that may be administered by the endotracheal route include atropine sulfate, lidocaine hydrochloride, naloxone hydrochloride, and metaraminol bitartrate. 
3 0
4 years ago
Can someone please help me?​
Tamiku [17]

1.

a. deoxyribose sugar, phosphate, and nitrogen-containing base

b. deoxyribose sugar

c. cytosine

d. adenine, thymine, guanine. and cytosine

7 0
3 years ago
Other questions:
  • Acid mine drainage occurs when surface water infiltrates which of the following? A) strip-mined coal beds B) spoil banks where w
    15·1 answer
  • Matching pairs of chromosomes from the parents are called
    7·1 answer
  • Which system controls the coordinated movement of animals? A. skeletal B. nervous C. muscular D. digestive
    8·2 answers
  • Which preservative has been found to be potentially carcinogenic in animals?
    8·1 answer
  • Which of these is an odorless, tasteless, invisible gas that comes from uranium in rocks and soil?
    12·1 answer
  • Which type of space probe is designed to move around in the surface of a moon or planet
    15·1 answer
  • which Of the following, which is NOT a characteristics of plants? a. have cell walls b. have roots c. range in height d. live on
    12·1 answer
  • What is the relationship between the health of the environment and human health​
    9·2 answers
  • Anything that has mass and takes up space
    9·1 answer
  • Explain the pathway of reflex arc and all the components involved from the time the patellar tendon.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!