Q. 2 The figure below represents the beginning of an experiment to demonstrate osmos
in a living cell using yam tissue
0.4
Beg
Living yam cup
Sugar solution
-Water trough
Water
End
(a) Draw and label a diagram to illustrate what would be observed if the set-up
allowed to stand for 24 hours. > Homework
15th Sepelembe w
(b) Explain the principle involved in the process.
(c) What does the yam cup represents?
(d) How would you set up a control of the experiment above?
(e) Give one example of the osmotic process in each of the following:
(i) Flowering plants (ii) Humans
Give me one example of osmosis process in human

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

true. until louis pasteur developed the rabies vaccine, “vaccines” had referred only to the cowpox inoculation for smallpox. hope this : )