Cell is the structural and functional unit of life. It has various components that are important for its survival such as plasma membrane, mitochondria, endoplasmic membrane, nucleus, golgi body, etc.
Answer: At a minimum, for a cell to be alive, it must contain the following organelles:
1. Plasma membrane: It is the covering of the cell that is selectively permeable.
2. Nucleus: It contains genetic material which is important for DNA replication.
3. Mitochondria: It is the power house of the cell that synthesizes ATP.
When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
a. resistance
b. appraisal
c. adjustment
d. resolution
Answer:
a. resistance
Explanation:
An endocrinologist named Hans Selye first described the collection of responses of the body to stress as General Adaptation Syndrome. He describes this syndrome in 3 phases. These include:
The alarm phase: this is the initial phase where the body witnessed the stressful and the body’s energy is boosted.
The Resistance Phase: This is the phase that follows immediately after the alarm phase. Here, the body’s autonomic nervous system helps the body in trying to resist and adapt well to the stressor. This is the phase in which an organism is best able to physically cope with the stress.
The exhaustion phase: When the stress continues at this phase, the body loses its ability to cope with the stress as energy is depleted.
Expository writing is explaining things in clear, logical steps, whereas narrative writing is telling a story, either fiction for enjoyment or an educational or exemplary story for an essay.
