Answer:
The cell membrane is semipermeable because it prevents harmful toxins from entering and damaging the cell. At the same time, the cell membrane allows nutrients and other helpful substances through. In this way, the cell membrane is like a security guard of the cell.
Explanation:
HOPE U UNDERSTOOD
Recreation, farming, ranching, and mining in earlier times were all similar because they all required the input of manual labor.
<h3>What is recreation?</h3>
Recreation refers to the activities that people do for relaxation purposes and enjoyment. Examples of recreational activities are:
- Going to watch a play
- Going to the square to watch musicians sing
- Recreational Hunting etc.
In medieval times, all of these activities were done manually without the use of advanced technology as we have today.
Learn more about recreation at:
brainly.com/question/16177222
Answer:
C. other problems in living.
Explanation:
Problems with marital, family, peer, work, school, or community relationships would be MOST similar to other problems in living.
Answer:
Modernization theory.
Explanation:
Modernization theory is a concept used to describe a nation's cycle of transformation as it moves from a traditional to a modern one. It emerged in the 1950s as an explanation of how North America and Western Europe's industrial societies evolved. It is based on the notion that technological advancement, scientific progress, technological advancement, mobility, and economic growth are vital elements of industrial societies and continuously strives by developing nations.
The correct answer is : c. object permanence
Object permanence is a sign of development of infant's social and mental capacities.
Example of object permanence : when infant is already aware that he/she has a dad. Even though the dad went to work and the infants can not see them , the infants still acknowledge his existance
