If an individual is a carrier of an infectious disease, he is BOTH ASYMPTOMATIC AND INFECTIVE .
An asymptomatic and infective carrier refers to a person, who is a carrier of a disease or has a disease causing infective agent in his system [that is, the person is infected with an infectious disease] but who is not showing any symptom of the disease. Carriers are not usually affected by the disease concerned but they can easily transmit it to other people.
Answer:
Most preservation methods cannot completely eliminate spoilage phenomena indefinitely.
Explanation:
There are many different types of preservation methods. They inclue things like dehydration, smoking, fermentation, salting, sweetening, canning, freezing, ultra high temperature, and irradation. Although some of these change food integrity, others maintain it. However, no method of preservation can preserve food indefinitely.
The human brain is the most complex organ in the human body
Answer: why it is hard to use dichotomous key in the lab are;
If the organisms you want to use it for are similar.
If you can't see the little characteristics posses by the organisms you are using it for.
If all the pictures does not reveal all the important features of the organisms.
It is very difficult to use it to determine the anatomical structure.
Explanation:
Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.
Answer: D. Species
Explanation:
Species is a group of population in which organisms have many common characteristics and they are capable of interbreeding and producing viable fertile offsprings. The members belonging to the same class and phylum have less common characteristics if they interbreed they may not produce viable fertile offsprings. Also, the organisms of the same kingdom have least common characteristics and will not have viable fertile offsprings after interbreeding.
