This is called the Columbian Exchange: the exchange of species and populations between the Old and the New World, including some diseases, plants as tomato and potato and animals.
The correct answer is letter A.
Explanation: Observational learning was studied by Albert Bandura (1925-1998), who developed several experiments to substantiate his theory.
According to Bandura, social learning occurs by observing the behaviors of those with whom we live (parents, friends, teachers). Bandura refers to modeling as the social learning process based on social observation and imitation.
Actions that avert harm in a high-risk situation, such as using seat belts in cars, are considered secondary prevention.
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Explanation:</u></h3>
Prevention is an act that stops an occurrence of a harmful event. This can be either primary, secondary or Tertiary. When actions are taken after an adverse event then it is tertiary treatment. It may be medical treatment which will be more effective.
Secondary prevention are the actions that helps in minimization of injuries when a harmful event occurs. Wearing seat belt definitely reduces the injuries that is caused to the driver when an accident occurs. Using seat belt in cars can be considered as a secondary prevention.
Answers – Distribution; Abundance
Ecologists are primarily concerned with the distribution and
the abundance of living things (people, plants and animals) in the environment,
<span>and the relationships between these
living things and their environment. They are concerned with the
ecosystem as a whole.</span>
The statement that best describes the <span>Supreme Court's decision in the Brown v. Board of Education case is that it declared the segregated public schools were unconstitutional. It was Board of Education in Topeka, Kansas that lost the case. The correct answer will be D. </span>
