Question: One way that researchers study the effects of trans fats on people's health is by setting up controlled experiments. For example, in an experimental feeding trial, participants agree to stick to specific diets that the researchers prescribe. In this case, the researchers might vary the proportions of saturated, unsaturated, and trans fats in the diet of each participant. Throughout the study, the health status of the participants is monitored closely.
Suppose that you are a researcher designing an experimental feeding trial. How would you set up your study and what limitations would you face?
Drag the labels onto the flow chart to identify the elements and limitations of your experimental design.
Explanation:
Hypothesis: Trans fat have found having negative effect on the cardiovascular effect.
Prediction : Eating more trans fats will have more risk of cardiovascular health problems.
Experiment: Feeding some people with a diet of higher trans fat and feeding others with a diet lower in trans fat.
Data collection: Blood samples are taken to measure the fat and cholesterol level in the two groups.
Practical limitations:* Is it possible to completely regulate people's diet?
* Are other life style factors affecting cardiovascular
health?
Ethical Limitation: Are we putting individuals health at risk?
Virus is a microscopic particle that can infect the cells of a biological organism.
Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.
At the most basic level, viruses consist of genetic material contained within a protective protein coat called a capsid; the existence of both genetic material and protein distinguishes them from other virus-like particles such as prions and viroids.
They infect a wide variety of organisms: both eukaryotes (animals, fungi and plants) and prokaryotes (bacteria).
A virus that infects bacteria is known as a bacteriophage, often shortened to phage.
The study of viruses is known as virology, and those who study viruses are known as virologists.
It has been argued extensively whether viruses are living organisms.
Most virologists consider them non-living, as they do not meet all the criteria of the generally accepted definition of life.
They are similar to obligate intracellular parasites as they lack the means for self-reproduction outside a host cell, but unlike parasites, viruses are generally not considered to be true living organisms.
A primary reason is that viruses do not possess a cell membrane or metabolise on their own - characteristics of all living organisms.
Examples of common human diseases caused by viruses include the common cold, the flu, chickenpox and cold sores.
Serious diseases such as Ebola, AIDS, bird flu and SARS are all also caused by viruses.
virus is a microscopic particle that can infect the cells of a biological organism.
Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.
At the most basic level, viruses consist of genetic material contained within a protective protein coat called a capsid; the existence of both genetic material and protein distinguishes them from other virus-like particles such as prions and viroids.
They infect a wide variety of organisms: both eukaryotes (animals, fungi and plants) and prokaryotes (bacteria).
A virus that infects bacteria is known as a bacteriophage, often shortened to phage.
The study of viruses is known as virology, and those who study viruses are known as virologists.
It has been argued extensively whether viruses are living organisms.
Most virologists consider them non-living, as they do not meet all the criteria of the generally accepted definition of life.
They are similar to obligate intracellular parasites as they lack the means for self-reproduction outside a host cell, but unlike parasites, viruses are generally not considered to be true living organisms.
A primary reason is that viruses do not possess a cell membrane or metabolise on their own - characteristics of all living organisms.
Examples of common human diseases caused by viruses include the common cold, the flu, chickenpox and cold sores.
Serious diseases such as Ebola, AIDS, bird flu and SARS are all also caused by viruse
Prokaryotes
Answer is.
Answer:
A
Explanation:
It has kinetic energy and chemical energy too, so A just sums up of those two.
<span>An object to be considered alive must have these characteristics.
1. Acquire and uses energy.
2. contains genetic programme.
3. composed of one more cells.
4. Respiration.
5. Must be able to grow.
6. Must be able to reproduce.
7. Must have a metabolism.
8. Must be able to respond to its environment. 9. Must be made of cells.</span>
The atoms should onky have same no. of protons+electrons.
