Answer to Question 1
Posted another one can you check that one too? Thanks.
Answer to Question 2
Social facilitation describes how an individual's level of performance is affected by the physical presence of other group members. The two types of social facilitation effects are audience effects and co-action effects. Audience effects are the effects of passive spectators on individual performances where other group members are not engaged in the task itself but are present as an audience. Co-action effects are the effects of the presence of other group members on the performance of an individual when the other group members are performing the same task as the individual.
Marx's Model Of The Social Classes
The leaky-barrel model: a settling-point model of eating and body weight homeostasis.
Indicators of Social Development
Fetal Development Timeline
Model for ecosystems on land
Development of the Dungeness crab (Cancer magister). The crabs live for 8 to 10 years.