Answer:
1) All of the above
Explanation:
Lamarck's theory of inheritance of acquired characteristics states that the physical changes in the body parts of an organism are inherited to their off spring from generation to generation. During his study of physical appearance ( phenotype) of organism Lamarck said that the characters adopted according to the changes in environment by organism as a physical change in body are inheritable e.g giraffes long neck due to shortage of food the giraffes in order to reach to higher trees had to make their neck long so their neck length was increased and they had long necks so the new offspring when burn had long necks so on this basis he said that the physical changes are inherited. Giraffes with long neck had more chances of survival in the environment.
<span>The fungi Basidiomycota is used for producing mushrooms, which are used as edibles by humans. Mushrooms are the reproductive structures of these fungi, and are rich source of many nutrients. Some mushrooms are highly poisonous also. Therefore, species should be identified before cultivation of the mushrooms.</span>
Answer:
Option-II and III
Explanation:
The wastewater produced by humans like from the human toilets is dumped into the flowing river bodies mostly in rivers and in the lakes also.
The human wastewater is rich in the nutrient contents like the phosphorus, nitrogen, and potassium. These nutrients could be accumulated in the lakes which could cause eutrophication in the lakes and rivers.
Also, the human stool sump is rich in the disease-causing pathogens like the bacterial species present in the gut and intestine.
Thus, Option-II and III are correct.
Answer: Adenine (A) is one of four chemical bases in DNA, with the other three being cytosine (C), guanine (G), and thymine (T). Within the DNA molecule, adenine bases located on one strand form chemical bonds with thymine bases on the opposite strand.
It’s the third one because if an organism dies off because it’s not evolved to match an environment that’s natural selection
