The effective rate of reproduction of an asexual lineage is 12 per year, what would be the effective rate of reproduction of a lineage are 3.
Although the primary replica quantity, R zero, is beneficial for information the transmissibility of a ailment and designing diverse intervention strategies, the conventional threshold amount theoretically assumes that the epidemic first takes place in a totally inclined population, and hence, R zero is basically a mathematically described amount. In many instances, it's miles of realistic significance to assess time-structured versions withinside the transmission capability of infectious diseases. 
R(t) indicates time-structured version because of the decline in inclined individuals (intrinsic factors) and the implementation of manipulate measures (extrinsic factors). If R(t)<1, it indicates that the epidemic is in decline and can be seemed as being beneathneath manipulate at time t (vice versa, if R(t)>1). T
Read more about the  rate of reproduction :
brainly.com/question/815744
 
        
             
        
        
        
Answer:
By looking at the biological bases of human behavior, psychologists are better able to understand how the brain and physiological processes might influence the way people think, act, and feel.
Explanation:
 
        
             
        
        
        
Answer:
dependent variable
Explanation:
In an experiment, a line graph can be used to display the results of the experiment. A line graph, which posseses two axis namely: x-axis or horizontal axis and y-axis or vertical axis, can be used to show the relationship between the independent and dependent variables in an experiment. 
The independent variable, which is the variable subject to change is displayed on the X-axis while the dependent variable is displayed on the vertical or Y-axis. 
 
        
             
        
        
        
2) Cross-fertilization makes for more variation in the traits of plants, giving them immunities and resistances to weather, pests, and disease.
        
             
        
        
        
Answer:
the fine transparent tubular sheath which envelops the fibres of skeletal muscles.