Explanation:
Theory of natural selection was given by Charles Darwin.
In this theory, he stated that all species develop through natural selection, that is, species that better fit or adjust in their environment can survive. Whereas species that are not able to fir or adjust in their environment can lead to death.
Natural selection is an important contribution to the theory of evolution because it increases an individual's ability to survive, compete and reproduce.
itchy. It also became hard for her to breathe. A few minutes after leaving her friend’s home, the
symptoms disappeared.
Provide a biological explanation for the symptoms the girl developed at her friend’s house. In your
response, be sure to:
• state one reason why her symptoms are not likely due to an infectious agent
Answer: This girl is allergic to cat´s hair.
Explanation:
The substance that provokes allergy to cats is a protein produced in the sebaceous glands and that can be found in the cats´ hair. It can be found in clothes, walls, beds, among other places. As it can also be suspended in air, a person can easily breathe it. In a house with cats, these proteins are present in important amounts.
An allergic reaction is an abnormal response of the immunity system to a substance considered strange to the body, in this case, the protein or the cat´s hair. These strange substances are called allergens.
The allergen gets in contact with the body for the first time in a sensibilization face. The immunity system considers that this is a strange dangerous substance for the body. In this first stage, the subject submitted to the presence of the allergen does not show any symptoms. But in a second contact, the organism reacts with allergic reactions.
There might appear symptoms in ayes and nose as irritations, stinging, cough, skin´s eruptions and difficulty to breath.
Boiling
Freezing
Evaporating
The answer to the question above is letter a. melting.
>Exothermic is the giving off heat energy the transfer of energy to the surroundings.
>In exothermic reaction, the energy is usually transferred as heat energy
> Other example of exothermic is combustion
Answer:
The correct option is D. Eighteen times more ATP is formed during aerobic respiration than during anaerobic respiration.
Explanation:
Aerobic respiration can be described as the process of respiration taking place in the presence of oxygen. This process makes a lot more energy as compared to anaerobic respiration.
Anaerobic respiration can be described as the process of respiration taking place in the absence of oxygen. This process is one of the earliest reactions that occurred in organisms since the formation of life.
The process of aerobic respiration releases 38 ATP per glucose whereas the process of anaerobic respiration releases 2 ATP molecules per glucose. Hence, the ATP formed during aerobic respiration is approx 18 times more than the anaerobic respiration.