Answer:
<em>a. Cross-sectional study</em>
Explanation:
A cross-sectional analysis <em>includes at one particular point in time looking at data from a population.</em> Participants are chosen based on specific variables of interest in this type of study.
For developmental psychology, cross-sectional experiments are often used, but this approach is also used in many other fields, including social science and education.
 
        
             
        
        
        
<span>Ptyalin hydrolysis does not continue in the stomach because it is destroyed by the stomach once it enter the stomach. </span>
Ptyalin is an amylase enzyme commonly found in the saliva of
humans and animals. This enzyme is secreted in the mouth ( buccal cavity) and catalyze
the hydrolysis of starch into maltose and dextrin. Immediately the starch
leaves the mouth and enter the stomach, stomach acids destroy the ptyalin.
 
        
             
        
        
        
The climate of the tropical zone characterized by a very wet season alternating with a very dry season is wet/ dry topical climate.
        
                    
             
        
        
        
False in lunar eclipse the shadow is cast on the sun
        
             
        
        
        
Answer: 1. increase the temperature from 27 degrees Celsius to 37 degrees Celsius
Explanation:
Generally, protease function optimally at temperature range of 55 to 60 degrees Celsius and at lower pH 5.0 to 5.5. Hence increase in temperature to 37 degrees Celsius will increase proteolysis.