If a person has memory B cells against a certain pathogen, the person is much less likely to <span>develop the disease a second time. The correct option among all the options that are given in the question is the second option or option "B". I hope that this answer has come to your help.</span>
Answer:
Most plants are auto trophic able to use sunlight as their primary source of energy,in a process called photosynthesis.This process enables them to turn carbon dioxide from the air into food,The carbon and oxygen which they need in order to build up their bodies ultimately comes from this carbon dioxide.
All animals are heterotrophs, which means that they cannot make their own food as plants do. Rather, animals must obtain the energy, carbon, hydrogen, oxygen, nitrogen, and minerals they need by consuming other living things. Animals are also animate, which means that they are capable of movement.
Answer:
Respiration is a chemical change. It releases energy by reacting with glucose and oxygen
Explanation:
Respiration is a chemical change as new substances like carbon dioxide and water are formed. Also there is change in the mass as glucose is oxidised by oxygen and heat is released. Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy.
The materials and equipment needed and procedures to follow in an experiment is termed as experiment protocol. It <span> is a predefined written procedural method in the design and implementation of </span>experiments<span>. Hope this answers the question. Have a nice day.</span>