Answer:
c. Designing the survey so that subjects are not forced to answer one question before going to the next.                
Explanation:
A researcher while conducting specific research asks the participants which he or she has been chosen for the purposed of research to sign the informed consent in which the researcher has mention the terms and conditions and brief description about a particular study. 
In an informed consent, a researcher should mention that the participant's information will be kept confidential and hence they can withdraw from the research whenever they want. They have the liability of answering questions and skipping them if they want to. In short, the researcher should follow the ethical guidelines.
 
        
             
        
        
        
Answer:
b. only one promise is involved in a unilateral contract.
Explanation:
An unilateral contract is a contract where the person or the offeror making the contract promises for the execution of the task by the other party. It can be accepted only be a performance.
In unilateral contract, there is only one promisor and no promisee is required whereas is bilateral contract includes both the promisor and the promisee.
Thus the correct answer is 
b. only one promise is involved in a unilateral contract.
 
        
             
        
        
        
Answer and Explanation
•	Marx and Engels never expressed admiration for the bourgeoisie and capitalism because their ideas where describing it as an exploitative system that benefited the owners of the means of productions than the workforce. These individuals created a Communist Manifesto that provided a deep analysis of capitalism, a progress of how to overthrow it and a plan for its replacement by a communists society.
•	Marx and Engels expresses antagonism and rejection towards the bourgeoisie and capitalism because they argued that the system mercilessly exploit the proletariat. In his explanation, Marx identified the emergency of a new industrial society that creates unequal relationships between the various social classes. Marx believed this disparity was breeding hostility between two important classes in the society.
•	They both believed that the system was a seed of destruction because the wealth of the bourgeoisie depended on the works of the proletariat. They both described that the surplus value created by workers was more than the wages that produced high profits for the owners of capital. They both predicted the end of modern factor system as a revolution where workers will rise up and take control of the system that exploited them.
 
        
             
        
        
        
Answer:
The hypothesis that will best demonstrate an economic benefit to the ranchers will be "Pastures with the highest diversity of plant species will have the highest net primary productivity."
Explanation:
This hypotheses would best demonstrate an economic benefit because it clearly states that when plant species are diverse, this will provide the highest net productivity to the ranchers. Hence if the aim of the student is to determine if increasing species diversity of edible plant would lead to great economic benefits, then this suits for the hypotheses.
 
        
             
        
        
        
Answer:
Context effect
Explanation:
Sean just discovered that his roommate Jack's girlfriend told him that she no longer wants to see him. Sean finds out that Jack is studying in the library, so he goes to find him. Although Jack looks like he is studying, Sean assumes he looks depressed. This assumption is an example of someone being influenced by: <u>context effect</u>. 
In cognitive psychology, a context effect is used to describe the effect an environment or people have on an individuals perceived stimulus. The prevailing environment or situation of Jack, that is, his girlfriend breaking up with him, influenced Sean into thinking that Jack was depressed