Smallpox<span> vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught </span>cowpox<span> did not later catch </span>smallpox<span> by showing that inoculated</span>cowpox<span> protected against inoculated </span>smallpox<span>.</span>
Answer:
The correct option is: a. Learned helplessness
Explanation:
Learned helplessness is a state of mind characterized by a perceived<u> lack of control over the events or situations.</u> A person subjected to repetitive adverse events or situations develops a sense of powerlessness and thus is unwilling to avoid subsequent encounters.
According to this theory, depression and other related mental conditions, can be a result of the <u>perceived or real lack of control over the outcomes of the events or situations.</u>
Answer:
Causes of male infertility. These may include: Abnormal sperm production or function due to undescended testicles, genetic defects, health problems such as diabetes or infections such as chlamydia, gonorrhea, mumps or HIV. Enlarged veins in the testes (varicocele) can also affect the quality of sperm.
Explanation:
Environmental scanning is the process of gathering information about events and their relationships within an organization's internal and external environments. The basic purpose of environmental scanning is to help management determine the future direction of the organization.
It is pulling your foot away after stepping on a sharp object
