Answer:
Fertilization
Explanation:
Fertilization may be defined as the process of formation of zygote by the fusion of male and female gamete. Fertilization is an important event of the sexual reproduction.
The haploid stage (gametes) that fuse together and forms the diploid stage (zygote) in alternation of generation. The zygote is the individual offspring of the result of fertilization.
Thus, the correct answer is option (3).
It’s 100x more acidic than 5
Answer:
Details about DNA are given in the explanation section. Hope it will be helpful for you.
Explanation:
DNA, or deoxyribonucleic acid, is the hereditary element in humans and almost all other organisms. Nearly every cell in a person’s body has the same type of DNA. Most DNA is found in the cell nucleus (nuclear DNA), but a small quantity of DNA can also be found in the mitochondria (mitochondrial DNA or mtDNA).
The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same type in all people.
DNA bases pair up with each other, A with T and C with G, to form units that are called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. A base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.
A valuable feature of DNA is that it can replicate, or make copies of itself. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases.
Answer:
Angina pectoris
Explanation:
Angina pectoris is a medical condition that is a result of a damage or disease in a major coronary blood vessel due to the imbalance between myocardial blood supply and the oxygen supply.
Symptoms include chest pain and if the symptoms persists it can lead to heart attack.
Therefore, the man who came presenting chest pain must be having Angina pectoris due to blockage of his coronary vessels due to his unhealthy lifestyle(smoking, diet full of saturated fats and lack of exercise)
The doctors prediction is right, there is a possibility he might suffer a heart attack.
Answer:
The correct answer is option b) "obesogenic environments".
Explanation:
According to the article of Lake A "Obesogenic environments: exploring the built and food environments" (2006), an obesogenic environment is defined as "'the sum of influences that the surroundings, opportunities, or conditions of life have on promoting obesity in individuals or populations". This kind of environment is presented in the US and other developed countries, which contrast with the environment in developing countries who may suffer from famine and starvation.