Answer:
1. option B
2. option A
3. option D
Explanation:
1. Which of these studies is an experimental study?
Yes, you got it right, it is study 2. Study 1 and 3 are just observational studies, where researchers collect and interpret data based on what they have seen, heard or observed. But for the experimental design, there is a manipulation on the part of the researchers where he grouped them and administered treatments.
2. Study 1 employs a retrospective design.
You also got that part right, Study 1 actually employed the retrospective design by sampling individuals and then collecting information about their past which in this case is asking questions about the participant's dietary and exercise habits between ages 15 and the present and also their medical records.
3. Study 3 employs a prospective design
You also got this right. Study 3 actually employed the prospective design by sampling individuals and follow them over time and data about them is collected as their characteristics or situations changes and in this context, they observed even after a change by sleeping more than 8 hours per night, students still did not seem to experience additional health benefits.
Answer:
1.a group of individuals of the same species that live in the same general location and have the potential to interbreed is the correct answer.
Explanation:
A population is defined as all organisms of the same species that live in a particular location and have the potential of interbreeding.
The characteristics of the population are
- population density
- population distribution
- Population size
- Age structure
The population is one of the most essential factors that play a major role to stabilize the environment.
Rhino is delivered as the genus name of the scientific naming system
Explanation:
-
The words 'Rhinoceros' is originated from the Greek. It is a combination of two ancient Greek words, 'ris' meaning nose and 'keras' meaning horn of an animal.
- The scientific names are always written using Genus and species names.
- The first part is the genus and the second part is the species.
- 'Rhinocerotidae' is the scientific name, where 'Rhino' is the Genus part and 'cerotidae' is the species part.
Translation happens between the two sub units of ribosomes.....as there the RNA converts into amino acid ! because RNA is read by tRNA and only in ribosomes!