Answer:
Herd immunity is a form of indirect protection from infectious disease that can occur with some diseases when a sufficient percentage of a population has become immune to an infection, whether through vaccination or previous infections, thereby reducing the likelihood of infection for individuals who lack immunity.
Explanation:
Vaccines create immunity without causing illness or resulting complications. Herd immunity makes it possible to protect the population from a disease, including those who can't be vaccinated, such as newborns or those who have compromised immune systems.
Answer: D. Autotrophs produce organic molecules
During photosyntheis, plants make sugar(an organic molecule and a type of carbohydrate). Photosynthesis occurs in autotrophs only, the organisms which are able to make their food like plants. Plants take air and water and produces glucose in presence of sunlight( a photochemical reaction). The product of the reaction is glucose which is one of the four types of organic molecule which is use by plants to make cells and their parts and growth.
Heterotrophs are the organisms which cannot make their own food and rely on other organisms for nutrients. Hence option 1 and 2 cannot be the part of answer. While the plants consume inorganic nutrients(decayed matter) from soil.
I'm not sure if this is exactly correct, but to complete photosynthesis, plants need carbon dioxide and water. Usually sunlight as well. If you are supposed to be specific, you could put H2O. I hope I answered your question!
Answer:
Semicircular canals
Explanation:
Ear is one of the important sense organ responsible for hearing and equilibrium. Human ear is divided into three parts: outer ear, middle ear and inner ear.
Inner ear is mainly responsible for the equilibrium of the body. Vestibular apparatus together with semicircular canals is responsible for the dynamic equilibrium of the body. Dynamic equilibrium involves head rotation and vertical movements of the body.
Thus, the correct answer is option (a).
Answer:
B) In anabolism, larger molecules are made from smaller molecules.
Explanation:
Anabolism is a metabolic process that uses up energy that is produced to build up complex and larger molecules from smaller ones. It is part of the chemical process that takes place in a cell.
For example, photosynthesis is an anabolic process, in which the cell forms larger molecules such as glucose from smaller molecules like water and carbon dioxide, with the use of solar energy.
Option B is true regarding anabolism.
