Answer:
In 1928, at St. Mary's Hospital, London, Alexander Fleming discovered penicillin. This discovery led to the introduction of antibiotics that greatly reduced the number of deaths from infection.
The discovery of penicillin was actually a mistake!
Fleming obtained an extract from the mold, naming its active agent penicillin. He determined that penicillin had an antibacterial effect on staphylococci and other gram-positive pathogens.
Explanation:
Answer:
This question is incomplete as it lacks options, the options are:
A. rotating crops
B. decreasing riverbank slopes
C. growing more vegetation
D. avoiding soil compaction
The answer is C. growing more vegetation
Explanation:
Wind erosion is a type of erosion caused by excessive wind. Wind erosion causes the blowing away of the top soil, which contains nutrients from one location to another. There are, however, various ways to prevent wind erosion from occuring which includes: planting of vegetation to serve as windbreak.
The growing of MORE VEGETATION COVER in form of trees can be used to control wind erosion because the trees will serve as windbreak and prevent the flooding effect of wind on the soil.
Answer:
no lo sé lo siento amigo espero que tengas suerte
Answer:
There are differences between Scientific Laws and Societal Laws. Scientific laws are based on scientific evidence that is supported by experimentation. Societal laws are based on the behavior and conduct made by society or government.
hope this helps!
Explanation:
Answer;
-23 in males
In humans, 23 in males is the only homologous chromosome pair that isn't the same.
Explanation;
-In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
-Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females. Females have two copies of the X chromosome, while males have one X and one Y chromosome.
-The 22 autosomes are numbered by size. The other two chromosomes, X and Y, are the sex chromosomes.
