Answer:
performing a controled experiment
Explanation:
this is because they can experience it themselcves, without having risk of external disturbance that would change tha outcome
Answer – DNA (Deoxyribonucleic acid)
The DNA provides the information for cell growth and function of all known living organisms. It also carries the information for their development and reproduction. Most of the DNA is located in the cell nucleus (in this case, called nuclear DNA), but some amount of DNA are also contained in the mitochondria (in this case, called mitochondrial DNA)
Answer:
First let's add the missing piece of information for clarity and then the options before we write the answer
The response that the nursing student should make is based on understanding the mechanism of heat loss in the newborn. This nursing intervention is designed to protect the newborn against which heat loss mechanism?
The options:
1. Radiation
2. Convection
3. Conduction
4. Evaporation
The CORRECT ANSWER IS 3.
3. Conduction
Explanation:
Thermoregulation in humans is a major area of homeostasis. In thermoregulation, body heat is produced mainly in the vital organs, such as the liver, brain, and heart, and in skeletal muscles contracting activities.
There are basically four modes of heat loss: convection, conduction, radiation, and evaporation.
Heat loss by radiation and conduction occurs when the skin temperature is higher in comparison to the surroundings temperature.
Heat loss by evaporation occurs when the surroundings temperature is higher in comparison to the skin temperature as in sport activity.
Back to our case study:
1. Radiation❌
Radiation is seen when the body or skin lossses heat to a cooler body without any direct contact being made.
2. Convection❌
Convention is seen when the body or skin losses heat to cooler ambient air.
3. Conduction✔✔✔
Conduction is seen when the body or skin comes in direct contact with a cooler surface resulting in a loss of body heat.
4. Evaporation❌
Evaporation is a phenomenal that results in heat loss in the process of converting liquid to a gas.
Answer:
<em>Comparisons of items eaten for food</em>
Explanation:
If we compare the diet intake of different organisms we will not be able to predict whether the organism has an evolutionary history or not. Hence, comparisons of items eaten for food is the LEAST useful technique to explore evolutionary history among organisms.
Other options mentioned will however be beneficial in understanding the evolutionary history among organisms. For example, analysis of DNA strands of different animal species will tell us the similarities and differences in the DNA strand. As a result, we will e able to predict whether they have evolutionary history or not.