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postnew [5]
2 years ago
9

Who discovered penicillin from plant​

Biology
1 answer:
sergejj [24]2 years ago
8 0

Answer:

Alexander Fleming discovered penicillin from plant.

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Neutral solutions, such as water, have an equal number of H+ and OH- ions <br><br> True or false
LuckyWell [14K]

Answer:

truew

Explanation:

7 0
3 years ago
Discuss the meaning and importance of selective toxicity as it relates to antimicrobials.
Burka [1]
An antimicrobial<span> is an agent that kills microorganisms or inhibits their growth. </span>Antimicrobial <span>medicines can be grouped according to the microorganisms they act primarily against. For example, antibiotics are used against bacteria and antifungals are used against fungi.
</span>
Selective toxicity<span> refers to the ability of the drug to targets sites that are relative specific to the microorganism responsible for infection. Sometimes these sites are unique to the microorganism or simply more essential to survival of the microorganism than to the host.

Selective theory relates to antimicrobial because the antimicrobial is the drug that kills microorganisms and inhibits there growth,  selective theory is the ability of the drug.
</span>
8 0
3 years ago
Did the Florida Panther become endangered because of natural selection, genetic drift, or gene flow?
Natalija [7]

Answer:

ALL OF THE ABOVE

Explanation:

Genetic Drift are the changes in allele frequency of a population that result from RANDOM survival or reproduction of individuals with certain characteristics.  Survival or reproduction of those individuals in the face of some environmental change is a matter of LUCK or CHANCE, not because of their phenotype or genotype.

While in Natural selection, the environmental events that affect a population are likely random, but the survival or reproduction of the individuals depends on their phenotypes and genotypes.

Meanwhile, Gene flow is the movement of genes into or out of a population. Low gen flow can lead to low genetic diversity.

Low population which can cause low genetic diversity, poor habitat conditions and habitat loss, road deaths, and commercial development in panther range are constant threats to the Florida Panther's survival.

All these causes are related and therefore affects the Florida Panther.

7 0
3 years ago
3. (b) How does crossing over increase the variation in the gametes (and hence the offspring)?
sasho [114]

Answer:

During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.

3 0
2 years ago
In what year did the goverment introduce a strict cleaning program for the hospitals
Jet001 [13]
It became clear in the 1970's


7 0
3 years ago
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