Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. ... During cell differentiation, the cell size and shape changes dramatically, as does its ability to respond to signaling molecules.
But it was not until 1928 that penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St. Mary's Hospital in London.
Answer: The correct answer would be 112.5 pounds
Explanation:
Let us first covert the pound into grams. We know that 1 pound is equal to 453.59 grams.
Thus, 50 pound of fat = 50 x 453.59 = 22,679.5 grams.
We know that, 1 gram of fat releases 9 Kcal of energy. Thus, total energy produced by 22679.5 grams = 9 x 22679.5 = 204,115.5 Kcal
Glycogen is carbohydrate thus, it will produce 4 Kcal of energy per gram.
Thus, 4 x C = 204,115.5 (where C is the grams of glycogen)
⇒ C = 
⇒ C = 51,028.875 grams
Using 1 pound = 453.59 grams, we con convert 51,028.875 grams into pounds:
453.59 = 1
1 = 
51,028.875 = 
= 112.5 pounds
Thus, 112.5 pound of glycogen would be needed to produce the same amount of energy as produced by 50 pounds of fat.
Answer:
zygote, fertilization
(haploid) spores, meiosis
a pollen tube