i'm too lazy to write that down for you but i can help you with a few points. Those are(i am relating this case to smoking):
>delicate lining of the lungs is damaged.
>cilia in the lining is damaged.
>since,cilia number is low, the lungs do not get cleaned often.
> spasms in the bronchi of the lungs, causing difficulty breathing.
>damaged lungs being much harder and more brittle.
Answer:
a) The change in the character of an organism relies upon the ability of the adaption on the base of the external change or the environment change, "An organism that is not able to adapt accordingly would not survive and eliminated from the population."
b) In the given case, Symmetric wings are far more suitable for the survivorship as it provides better flight than the organism with asymmetric wings, it is also given that there is 20% of the population have asymmetric wings.
After the storm which is selection pressure, there is the elimination of the entire bird population with asymmetrical wings from the ecosystem so the final frequency would be 100% of the entire population with symmetrical wings.
The given diagram is of the digestive system of the humans. The labels 'i', 'j', and 'k' represents the absorption of the products of the digestion from the small intestine and the large intestine.
'i' - This arrow represents the absorption of sugars and amino acids into the bloodstream via the villi present in the small intestine.
'j' - This arrow represents the absorption of the fatty acids into the lymphatic vessel through the lacteals present in the villi. These merge to form the lymphatic vessel.
'k' - This arrow represents the absorption of the ions and nutrients which are released by the bacteria present in the intestine.
The answer is D. The dark mice could not camouflage on the white beach sand hence were more conspicuous. Therefore, the Predators were able to easily spot them and prey on them. Therefore, the phenotype of dark mice reduced in the population since most mice were not able to reach maturity and pass down their traits. The allele for white fur, therefore, increased in the population. This is the process of natural selection at work.
